{"topic":"baryon-asymmetry","tier":"stated","total":264,"limit":50,"offset":0,"claims":[{"claim_id":3357430,"arxiv_id":"2609.12542","paper_version":1,"claim_text":"The central discovery is that the baryon asymmetry of the Universe can be generated through leptogenesis in models where the neutrino Dirac mass matrix is set equal to the charged fermion mass matrix of down-type quarks (Model B) or charged leptons (Model C), with the heavy right-handed neutrino mass matrix reconstructed from low-energy neutrino oscillation data via the seesaw relation. Successful leptogenesis occurs only for normal neutrino mass ordering and requires two heavy neutrinos with mass differences below 0.1% but still outside the conventional resonant regime. The Dirac CP phase alone is insufficient; nonzero Majorana phases are essential. The predicted effective Majorana mass for neutrinoless double beta decay in some cases falls below 10 meV, accessible to experiments like LEGEND-1000 and nEXO.","claim_key":"core","tier":"stated","source":"verdict_pith","method":"phrase","confidence":0.9,"assigned_at":"2026-09-15T03:44:18.622983+00:00","lean_module":null,"lean_decl":null,"lean_status":null,"reality_plus_commit":null,"paper_title":"Leptogenesis Determined By Low Energy Parameters","paper_submitted_at":"2026-09-11T07:52:09+00:00"},{"claim_id":3202439,"arxiv_id":"2609.11747","paper_version":1,"claim_text":"The central claim is that the bubble wall velocity in the CxSM with a two-field phase transition can be precisely determined from two steady-state force balance conditions $M_1=0$ and $M_2=0$, which simultaneously fix the wall velocity $v_w$ and the wall thickness $L_w$. The calculation reveals that $v_w$ is not a free parameter but emerges from the competition between the driving pressure (the free-energy difference between phases) and the microscopic friction from out-of-equilibrium particle perturbations. For the benchmark parameter set the result is $v_w=0.373,\\,L_w=0.112\\,\\text{GeV}^{-1}$; over the scanned mix angle range $v_w$ increases with the transition strength $\\alpha_n$. The paper further demonstrates that using the self-consistent $v_w$ rather than an independently chosen value changes the estimated baryon asymmetry by a factor of order unity.","claim_key":"core","tier":"stated","source":"verdict_pith","method":"phrase","confidence":0.9,"assigned_at":"2026-09-15T03:44:18.622983+00:00","lean_module":null,"lean_decl":null,"lean_status":null,"reality_plus_commit":null,"paper_title":"Precise bubble wall velocity in a specific phase transition pattern in the CxSM and beyond","paper_submitted_at":"2026-09-10T16:02:55+00:00"},{"claim_id":3207612,"arxiv_id":"2609.11221","paper_version":1,"claim_text":"In Starobinsky inflation within a modified mass-to-horizon cosmology, the scalar power spectrum amplitude As, evaluated under a fixed-Starobinsky-normalization prescription, yields the constraint 0.960 ≲ n ≲ 1.040 for N = 60 e-folds when matched to the Planck 2018 central value. This is an order of magnitude tighter than the bounds derived from the spectral index ns or the tensor-to-scalar ratio r, and is competitive with constraints from baryogenesis and large-scale structure. The result establishes that the amplitude of primordial perturbations is a particularly sensitive discriminator of departures from the standard n = 1 MHR scaling.","claim_key":"core","tier":"stated","source":"verdict_pith","method":"phrase","confidence":0.9,"assigned_at":"2026-09-15T03:43:55.379321+00:00","lean_module":null,"lean_decl":null,"lean_status":null,"reality_plus_commit":null,"paper_title":"Constraining Modified Mass-to-Horizon Cosmology Through Primordial Inflationary Observables","paper_submitted_at":"2026-09-10T08:22:55+00:00"},{"claim_id":3160515,"arxiv_id":"2609.08470","paper_version":1,"claim_text":"A multi-block physics-informed neural network (PINN) trained on the Wetterich flow equation can yield a nonperturbative effective potential for the Z2-symmetric real singlet extension of the Standard Model at finite temperature. The potential is represented continuously in scale and field space, avoiding the need for polynomial truncations. When the soft perturbative-consistency penalty is included, the network reproduces the resummed one-loop finite-temperature reference potential to within a few percent along the Higgs and singlet axes at the infrared end of the flow. The success is qualified: the penalty, with hand-tuned weights and an analytic thermal target, is necessary for selecting a physically sensible solution, and the converged infrared potential retains a residual dependence on that guidance.","claim_key":"core","tier":"stated","source":"verdict_pith","method":"signals","confidence":0.8,"assigned_at":"2026-09-15T03:44:18.622983+00:00","lean_module":null,"lean_decl":null,"lean_status":null,"reality_plus_commit":null,"paper_title":"Nonperturbative functional renormalization group for Higgs-singlet models with physics-informed neural networks","paper_submitted_at":"2026-09-08T09:10:47+00:00"},{"claim_id":3160561,"arxiv_id":"2609.08462","paper_version":1,"claim_text":"The central discovery is that for PBH masses in the range $10^{11}$–$10^{13}$ g, the ratio B(R_h,T)/B(0,T) of the vacuum decay exponent in the PBH background to that in flat spacetime is less than unity, demonstrating that PBHs weaken the exponential suppression of false-vacuum decay. This is shown by solving the scalar field equation in a Schwarzschild background (with backreaction neglected) and computing the mass correction δM_tot, which gives the exponent B = δM_tot/T. The same PBH masses also reduce the sphaleron energy, but the PBH-to-baryon number ratio is so small (~$10^{{-37}}$) that the resulting washout is negligible. The baryon asymmetry from Hawking evaporation of beyond-Standard-Model particles is estimated to be Y_B / $Y_B^{{obs}}$ ≲ $10^{{-8}}$, consistent with BBN and CMB constraints.","claim_key":"core","tier":"stated","source":"verdict_pith","method":"phrase","confidence":0.9,"assigned_at":"2026-09-15T03:44:18.622983+00:00","lean_module":null,"lean_decl":null,"lean_status":null,"reality_plus_commit":null,"paper_title":"Vacuum Decay and Baryogenesis Associated with Primordial Black Holes at Finite Temperature","paper_submitted_at":"2026-09-08T09:00:37+00:00"},{"claim_id":3195520,"arxiv_id":"2609.07467","paper_version":1,"claim_text":"The authors establish that the baryon number after sphaleron freeze-out, nB, is a linear combination of the total B-L charge and the flavor-diagonal lepton asymmetries: nB = Csph nB-L + Fsph Σ heα² nΔα. The coefficients Csph and Fsph are not equilibrium values evaluated at either symmetric or broken phase; they are the solutions of the full transport equation across the electroweak crossover, including N2LO corrections to the equilibrium properties (hard and soft contributions in the 3d effective theory) and the lattice sphaleron rate. The numerical values are Csph = 0.3328 ± 0.0005 and Fsph = 0.0279 ± 0.0019, with uncertainties dominated by the renormalization-scale dependence of the Higgs expectation value. The freeze-out temperature at which the equilibrium values equal the evolved ones is TB ≈ 138.2 GeV.","claim_key":"core","tier":"stated","source":"verdict_pith","method":"signals","confidence":0.8,"assigned_at":"2026-09-15T03:44:18.622983+00:00","lean_module":null,"lean_decl":null,"lean_status":null,"reality_plus_commit":null,"paper_title":"Baryon number freeze-out in the Standard Model, precisely","paper_submitted_at":"2026-09-07T13:22:57+00:00"},{"claim_id":3198930,"arxiv_id":"2609.07130","paper_version":1,"claim_text":"The paper's central discovery is that, in the type-II seesaw, the majoron's rolling produces a $B-L$ asymmetry by displacing thermal equilibrium rather than by making antiparticle decays different from particle decays. After the majoron phase is removed from the interactions by a field redefinition, the rolling background shifts the dispersion relations, $E_\\pm=\\sqrt{|\\vec p|^2+m^2}\\mp\\dot\\theta$ for the triplet and $\\mp \\dot\\theta/2$ for leptons, and this endows the equilibrium distribution functions with chemical potentials proportional to $\\dot\\theta$, fixed by hypercharge neutrality together with the chemical-equilibrium conditions $\\mu_\\Delta=2\\mu_\\ell=2\\mu_H$ of the two decay channels $\\Delta\\to\\ell\\ell$ and $\\Delta\\to HH$. The paper shows that in the massless final-state limit the partial widths of $\\Delta$ and $\\bar\\Delta$ are equal, so the asymmetry is sourced entirely by the approach to the shifted equilibrium, and it derives the complete set of Boltzmann equations for the asymmetric yields $Y_{\\Delta-}$, $Y_{\\ell-}$ and $Y_{H-}$. The main quantitative result is $Y_B=\\frac{28}{79}c_{B-L}\\epsilon_1\\tilde Y^\\infty_{\\ell-}$, where $\\tilde Y^\\infty_{\\ell-}\\simeq 2\\times10^{-5}$ when the two branching ratios are comparable and scales as $\\sqrt{\\mathrm{Br}_\\ell\\mathrm{Br}_H}$ when either is small; the yield is essentially independent of the triplet mass, and lepton number is exactly conserved if either the Yukawa coupling or the Higgs trilinear coupling is turned off. Reproducing the observed baryon asymmetry requires a majoron kick of $|\\epsilon_1|\\gtrsim 9\\times10^{-8}$, which is compatible with the model leaving room for the triplet mass down to the region probed by current collider searches.","claim_key":"core","tier":"stated","source":"verdict_pith","method":"phrase","confidence":0.9,"assigned_at":"2026-09-15T03:44:18.622983+00:00","lean_module":null,"lean_decl":null,"lean_status":null,"reality_plus_commit":null,"paper_title":"Majoron-driven spontaneous leptogenesis in type-II seesaw model","paper_submitted_at":"2026-09-07T07:29:30+00:00"},{"claim_id":3092102,"arxiv_id":"2609.05605","paper_version":1,"claim_text":"The central claim, stated on the paper's own terms, is that the minimal global-$U(1)_H$ Froggatt-Nielsen model is sufficient for spontaneous baryogenesis once the Weinberg operator is present: no dynamical right-handed neutrinos, no new CP-violating decays, and no departure from thermal equilibrium are required. After a flavor-dependent chiral rotation removes the axion phase from the effective Yukawa operators, the Lagrangian acquires a derivative coupling $-\\partial_\\mu a\\,j^\\mu_{\\rm FN}/v_\\phi$ plus anomalous axion couplings to $W$ and gluon fields; for a time-dependent background, the term $\\dot a/v_\\phi$ acts as a chemical potential for the fields carrying $U(1)_H$ charge. The paper solves the resulting Boltzmann network for two benchmark charge assignments and shows that the final $B-L$ asymmetry can match the observed baryon abundance, exceed it by orders of magnitude, or change sign depending on the lightest neutrino mass and the charge pattern. The surviving parameter window, constrained by entropy dilution from axion decays and by baryonic isocurvature from inflationary axion fluctuations, is $T_{\\rm osc}\\gtrsim 4\\times 10^{11}$ GeV and $v_\\phi\\in[7\\times 10^{13},2\\times 10^{17}]$ GeV, with the axion decaying well before Big Bang Nucleosynthesis.","claim_key":"core","tier":"stated","source":"verdict_pith","method":"phrase","confidence":0.9,"assigned_at":"2026-09-15T03:44:18.622983+00:00","lean_module":null,"lean_decl":null,"lean_status":null,"reality_plus_commit":null,"paper_title":"Minimal spontaneous baryogenesis from flavor","paper_submitted_at":"2026-09-04T18:00:01+00:00"},{"claim_id":3075009,"arxiv_id":"2609.02383","paper_version":1,"claim_text":"The central claim is that for non-Hermitian interaction Lagrangians of the form L_int = λ/4! $φ^{4}$(x) (and its fermion analogs), the propagators <0|T(φ(x)φ(y))|0> and <0|T(φ*(x)φ*(y))|0> are identically zero, so all Feynman diagrams with internal lines for these fields vanish. Hence the effective action is the free action plus the interaction term, and the S-matrix is exactly given by exp(i∫ L_int $d^{4}$x). The only nonzero reaction is φφ → φ*φ*. Applying the same idea to a four-quark interaction (21) that couples ̄u, ̄d, s̄ to ψ, the model predicts that only antiquark pairs annihilate into ̄ψ (dark matter), while quark pairs do not produce ψ. This mechanism simultaneously generates the baryon asymmetry of the Universe and yields stable dark matter with mass determined by ρ_DM/ρ_B ≈ 6 as m_ψ ≈ 6 GeV.","claim_key":"core","tier":"stated","source":"verdict_pith","method":"phrase","confidence":0.9,"assigned_at":"2026-09-15T03:44:18.622983+00:00","lean_module":null,"lean_decl":null,"lean_status":null,"reality_plus_commit":null,"paper_title":"Strictly solvable $d=4$ quantum field theory models with unitarity violation. Possible implications for baryon asymmetry of the Universe and dark matter","paper_submitted_at":"2026-09-02T09:57:52+00:00"},{"claim_id":3081414,"arxiv_id":"2609.01717","paper_version":1,"claim_text":"The paper's claim, stated on its own terms, is that a population of evaporating primordial black holes opens a viable path for the minimal charged-scalar realization of Dirac leptogenesis precisely where the thermal mechanism fails. Because the Hawking temperature scales inversely with black hole mass, $T_{\\rm BH}\\propto M^{-1}$, a sufficiently light black hole reaches $T_{\\rm BH}\\sim M_X$ and emits the charged scalar $X$ even when the plasma is far too cold for thermal production; the subsequent CP-violating decays of this nonthermal population add the source term $\\epsilon\\,\\Gamma^{\\rm BH}_X \\Sigma^{\\rm BH}_X$ to the right-handed neutrino asymmetry. Solving the coupled Boltzmann system that includes thermal production, Hawking emission of $X$ and of right-handed neutrinos, the modified expansion rate, and entropy injection, the authors find that for representative benchmarks the successful region extends from mediator masses near $10^9$ GeV down to about $10^6$ GeV, and that smaller effective CP asymmetries can be compensated. The effect is not a universal enhancement: where the thermal asymmetry is already efficient, black holes can instead reduce or reshape the final result, with narrow sign-changing structures in the parameter plane. The same evaporation deposits energy in the right-handed neutrino sector, so part of the $\\eta_B$-sufficient region predicts $0.06<\\Delta N_{\\rm eff}<0.284$, a correlated target for future CMB measurements.","claim_key":"core","tier":"stated","source":"verdict_pith","method":"signals","confidence":0.8,"assigned_at":"2026-09-15T03:44:18.622983+00:00","lean_module":null,"lean_decl":null,"lean_status":null,"reality_plus_commit":null,"paper_title":"Primordial Black Hole Assisted Dirac Leptogenesis","paper_submitted_at":"2026-09-01T18:00:07+00:00"},{"claim_id":3153930,"arxiv_id":"2608.26709","paper_version":1,"claim_text":"The central claim is that the baryon–dark matter coincidence follows directly from two ingredients: (i) a relativistically decoupled thermal relic with number density $n_X \\sim T^3$ and (ii) a frozen baryon asymmetry parametrized by $|n_B| \\sim |\\mu_B| T_{\\rm sph}^2$. When the dark-matter mass equals the magnitude of the baryon-number chemical potential, $|\\mu_B| \\sim m_X$, the present-day energy-density ratio becomes independent of $m_X$ and of microscopic couplings, yielding $\\Omega_X/\\Omega_b \\simeq 5.4 \\, (11 g_{\\chi2}/n)\\, (g_{*s}(T_{\\rm sph})/g_{*s}(T_p))\\, (T_{\\rm sph}/131.7~{\\rm GeV})\\, (0.94~{\\rm GeV}/m_N)$. The paper demonstrates this relation explicitly for an Affleck–Dine field $P$ whose rotating phase $\\dot\\theta \\simeq m_R$ sources the chemical-potential bias $\\mu_{\\rm bias} \\simeq c m_R$, while the excitations of $P$ (radial and phase modes) are produced at thermal abundance via Bose-enhanced stimulated emission and constitute the dark matter. A neutrino-portal model with a pseudo-Dirac sterile pair realizes the required coupling without excessive thermal corrections to the $P$ potential.","claim_key":"core","tier":"stated","source":"verdict_pith","method":"phrase","confidence":0.9,"assigned_at":"2026-09-15T03:44:17.328221+00:00","lean_module":null,"lean_decl":null,"lean_status":null,"reality_plus_commit":null,"paper_title":"$\\mu$DM: a new mechanism for the baryon-dark matter coincidence","paper_submitted_at":"2026-08-27T07:04:51+00:00"},{"claim_id":3154332,"arxiv_id":"2608.26670","paper_version":1,"claim_text":"The paper's load-bearing assertion, stated in the abstract and implemented in Section III: 'in association with a proper scalar and the other TeV new physics, the baryon-lepton conversion can still keep efficient after the electroweak sphalerons are no longer active.' Concretely, from the dimension-7 operator O4 (Eq. 8), the 2 to 3 scatterings of Eq. (13) have rate Gamma = (9/32 pi^5) T^7 / Lambda^6 (Eq. 18), so with Lambda = 1.35 TeV they stay in equilibrium for T above about 6 GeV (Eq. 19), and chi-number non-conservation stays in equilibrium far below that, down to T_E of order 10^13 GeV for a unit quartic coupling (Eq. 22). If correct, B plus L is continuously reprocessed between the electroweak scale and a few GeV while B minus L is conserved, changing which baryogenesis mechanisms can survive.","claim_key":"core","tier":"stated","source":"verdict_pith","method":"phrase","confidence":0.9,"assigned_at":"2026-09-15T03:43:55.379321+00:00","lean_module":null,"lean_decl":null,"lean_status":null,"reality_plus_commit":null,"paper_title":"Post-sphaleron conversion between baryon and lepton numbers","paper_submitted_at":"2026-08-27T06:24:14+00:00"},{"claim_id":2947074,"arxiv_id":"2608.23679","paper_version":1,"claim_text":"On the authors' own terms, the central discovery is that strong first-order transitions with LISA-observable gravitational-wave signals in the type-I 2HDM are confined to two narrow, well-separated 'custodial' regions: the standard-custodial cloud with $m_A\\simeq m_{H^\\pm}$ and the twisted-custodial cloud with $m_H\\simeq m_{H^\\pm}$. Only the standard-custodial cloud reliably crosses the LISA detection threshold, with maximal reproducible SNRs around 141 and 56 in the two independent pipelines, and 94.8% to 95.9% of those points (or 88.7% to 84.8% without high-temperature electroweak symmetry restoration, depending on the pipeline) lie above the projected HL-LHC sensitivity in $gg\\to H\\to ZZ$. The twisted-custodial cloud stays essentially below the LISA threshold but is almost fully HL-LHC-testable. The paper therefore concludes that if the HL-LHC excludes $H\\to ZZ$ in the $m_H\\simeq180\\text{--}250\\,\\mathrm{GeV}$ window, the likelihood of a LISA-observable 2HDM phase-transition background drops substantially, whereas an HL-LHC discovery would still leave the order and strength of the transition for LISA to determine.","claim_key":"core","tier":"stated","source":"verdict_pith","method":"signals","confidence":0.8,"assigned_at":"2026-09-15T03:44:17.328221+00:00","lean_module":null,"lean_decl":null,"lean_status":null,"reality_plus_commit":null,"paper_title":"When the HL-LHC is blind, LISA is deaf (but not vice versa): 2HDM collider-cosmology synergies","paper_submitted_at":"2026-08-24T18:00:01+00:00"},{"claim_id":2827162,"arxiv_id":"2608.21799","paper_version":1,"claim_text":"The central claim is that a self-conjugate dark matter fermion can inherit its relic abundance from a primordial baryon asymmetry even though it carries no conserved asymmetry, provided a heavier colored scalar acts as a temporary asymmetric reservoir. In the simplified model $\\mathcal{L}_{\\rm portal} = -\\lambda \\, \\tilde q \\, \\bar q \\tfrac{1-\\gamma^5}{2}\\,\\chi + \\text{h.c.}$, the symmetric $\\tilde q \\bar{\\tilde q}$ component is efficiently depleted by QCD annihilations, while the net asymmetry $Y_\\Delta = Y_{\\tilde q} - Y_{\\tilde q^*}$ survives. Because the portal coupling is small, $\\tilde q$ and $\\chi$ are not in chemical equilibrium during most of the evolution; late-time decay and scattering then transfer the surviving asymmetry to $\\chi$ after its ordinary thermal freeze-out. The final abundance is controlled by the amount of asymmetry surviving, the timing of transfer (set by $\\lambda$), and the residual $\\langle\\sigma v\\rangle_{\\chi\\chi}$ annihilation. The paper demonstrates numerically that for $m_{\\tilde q}=2$ TeV and $m_\\chi=500$ GeV, $\\lambda \\simeq 2.5\\times10^{-9}$ gives $\\Omega_{\\rm DM} h^2 \\simeq 0.12$, with the same qualitative mechanism holding for hierarchical spectra, p-wave annihilation, and a larger lepton asymmetry.","claim_key":"core","tier":"stated","source":"verdict_pith","method":"phrase","confidence":0.9,"assigned_at":"2026-09-15T03:44:17.328221+00:00","lean_module":null,"lean_decl":null,"lean_status":null,"reality_plus_commit":null,"paper_title":"Baryon Asymmetry Transfer to Majorana Dark Matter from a Colored Partner","paper_submitted_at":"2026-08-22T06:44:38+00:00"},{"claim_id":2844041,"arxiv_id":"2608.19651","paper_version":1,"claim_text":"The paper claims that in a top-philic Type-III 2HDM the same parameter region motivated by the LHC $t\\bar{t}$ threshold excess, with $m_A\\simeq345$ GeV and an explicit complex phase in the extra top Yukawa coupling $\\rho_{tt}$, can provide the CP-violating source for electroweak baryogenesis. Solving the three-field bounce, transport equations, and baryon-number evolution with the Parwani-prescribed one-loop effective potential gives $Y_B\\simeq8.7\\times10^{-11}$ together with a strong first-order transition ($v_n/T_n\\gtrsim1$, $S_3/T_n\\simeq140$). The successful points require a relatively large quartic coupling, $\\lambda_3\\simeq4$, a nearly degenerate nonstandard scalar spectrum, $|\\lambda_7|\\lesssim0.8$, $|\\lambda_4|,|\\lambda_5|\\lesssim0.2$, and $|\\rho_{tt}|\\lesssim0.4$. The same calculation under the Arnold-Espinosa prescription gives $T_c\\simeq158$ GeV and no point satisfying both nucleation and strong-transition conditions, so the positive result is traced to the resummation scheme. For the transitional-CPV scenario, no parameter point in the explored regions develops the required CP-odd negative mode while maintaining a viable first-order transition, so the paper concludes that realizing electroweak baryogenesis in this model appears to require an explicit source of CP violation.","claim_key":"core","tier":"stated","source":"verdict_pith","method":"phrase","confidence":0.9,"assigned_at":"2026-09-15T03:44:17.328221+00:00","lean_module":null,"lean_decl":null,"lean_status":null,"reality_plus_commit":null,"paper_title":"Electroweak Baryogenesis in Top-Philic Type-III Two-Higgs-Doublet Model motivated by the $t\\bar{t}$ Excess at the LHC","paper_submitted_at":"2026-08-20T05:40:33+00:00"},{"claim_id":2844124,"arxiv_id":"2608.19367","paper_version":1,"claim_text":"The paper argues that in the minimal Higgs parity model, with gauge group $SU(3)_c\\times SU(2)_L\\times SU(2)_R\\times U(1)_X$ broken to the Standard Model at scale $v_R$, the baryon asymmetry can be generated by out-of-equilibrium decays of the heavy singlet fermions $S_i$ after $SU(2)_R$ breaking. Each $S_i$ decays through two competing channels, $S_i\\to \\bar e_a W_R^{(\\ast)}$ and $S_i\\to \\ell_b H_L$, and the coexistence of these channels violates $B-L$ while one-loop interference between them produces a CP asymmetry $\\epsilon_{ia}$ that can be parametrically large despite small neutrino masses, because the masses are generated only at five-loop order. The asymmetry exists only because the right-handed charged leptons are non-trivial mixtures of $SU(2)_R$ doublet partners and a heavier vector-like state; if the heavy state were kinematically open, unitarity would cancel the inclusive asymmetry, so the model requires $M_H\\gtrsim M_{S_i}$. Feeding $\\epsilon_{ia}$ into a Boltzmann treatment with the $28/79$ sphaleron conversion factor, thermal production gives an upper bound on the baryon yield that demands $v_R\\gtrsim 6\\times 10^{12}$ GeV, whereas non-thermal production via inflaton decay, after washout constraints from inverse decays and a dimension-seven scattering operator are imposed, leaves viable $v_R\\gtrsim 10^{4}$ GeV — a window that current LHC bounds and future colliders can directly probe.","claim_key":"core","tier":"stated","source":"verdict_pith","method":"phrase","confidence":0.9,"assigned_at":"2026-09-15T03:43:55.379321+00:00","lean_module":null,"lean_decl":null,"lean_status":null,"reality_plus_commit":null,"paper_title":"TeV-scale leptogenesis in a parity symmetric neutrino mass model","paper_submitted_at":"2026-08-19T18:36:38+00:00"},{"claim_id":2692539,"arxiv_id":"2608.12497","paper_version":1,"claim_text":"On the paper's own terms, the discovery is that a rolling Majoron, through its derivative coupling to the $B-L$ current, induces an effective chemical potential that biases the $B-L$-violating decays and inverse decays of the lightest right-handed neutrino, and the resulting lepton asymmetry is converted by electroweak sphalerons into the observed baryon abundance $Y_B\\simeq 8.7\\times10^{-11}$. The key formula is $Y_B=(c_B/6)\\,Y_\\theta\\,(M_1/(v_\\phi z_{\\rm dec}))^2$, where $Y_\\theta=v_\\phi^2\\dot\\theta/s$ is the conserved angular yield of the Majoron, $v_\\phi$ is the $U(1)_{B-L}$ breaking scale, and $z_{\\rm dec}=M_1/T_{\\rm dec}$ is the inverse-decay decoupling point; the coefficient $c_B$ is obtained from chemical-equilibrium and spectator relations, including the role of the $\\lambda_5$ interaction that couples the inert doublet to the Higgs. Because the asymmetry is sourced by the background motion rather than by CP-violating decay amplitudes, the strong washout that suppresses conventional thermal leptogenesis instead helps the plasma track the equilibrium asymmetry, and the lightest right-handed neutrino can be as light as about 600 GeV while still being hierarchical. The same rolling Majoron can later become dark matter through kinetic misalignment, with a sub-eV Majoron that is long-lived and contributes $\\Delta N_{\\rm eff}\\simeq0.025$ as dark radiation.","claim_key":"core","tier":"stated","source":"verdict_pith","method":"signals","confidence":0.8,"assigned_at":"2026-09-15T03:44:17.328221+00:00","lean_module":null,"lean_decl":null,"lean_status":null,"reality_plus_commit":null,"paper_title":"Spontaneous Scoto-leptogenesis","paper_submitted_at":"2026-08-12T18:23:22+00:00"},{"claim_id":2336099,"arxiv_id":"2608.10633","paper_version":1,"claim_text":"The central claim is that a homogeneous, evolving axion background with Chern-Simons coupling to $U(1)_Y$ modifies the hypercharge gauge field dispersion relation to $\\omega_\\pm \\approx k/a \\mp \\beta_1\\dot{\\phi}/(2 f_a)$, and that in thermal equilibrium this splitting imprints an asymmetry in the Bose-Einstein occupation numbers of the two helicity modes. The resulting expectation value $\\langle E\\cdot B\\rangle = -\\beta_1 T^3/(12 f_a)\\, d(\\dot{\\phi}/T)/dt$ feeds the Standard Model anomaly equation and gives the baryon number change $a^3(t_f)n_B(t_f)-a^3(t_i)n_B(t_i)=\\beta_1 N_f g_Y^2 (aT)^3/(96\\pi^2 f_a)(\\dot{\\phi}_i/T_i-\\dot{\\phi}_f/T_f)$. In the kinetic misalignment mechanism, where the axion momentum $Y_{PQ}$ is constant, this becomes $n_B/s = \\beta_1 N_f g_Y^2 Y_{PQ}/(96\\pi^2 f_a^2)(T_i^2-T_f^2)$, and the observed asymmetry is reached for natural parameter choices with $f_a\\sim10^9$ GeV, $T_i\\sim10^6$ GeV, $\\beta_1\\sim0.1$, and $Y_{PQ}\\sim40$. After electroweak symmetry breaking, the same axion-photon coupling shifts photon dispersion relations and produces a spectral distortion $\\delta I_a$ that saturates at $\\epsilon^2 I_0$ in the low-frequency limit, unlike $y$ and $\\mu$ distortions that vanish there.","claim_key":"core","tier":"stated","source":"verdict_pith","method":"signals","confidence":0.8,"assigned_at":"2026-09-15T03:44:17.328221+00:00","lean_module":null,"lean_decl":null,"lean_status":null,"reality_plus_commit":null,"paper_title":"Baryogenesis and CMB spectral distortion from Axions","paper_submitted_at":"2026-08-11T08:18:35+00:00"},{"claim_id":2096462,"arxiv_id":"2608.09814","paper_version":1,"claim_text":"On the paper's own terms, the discovery is that a modified pre-BBN expansion history with stiff equation-of-state epochs makes vanilla (unflavored) leptogenesis viable in a mass range where standard radiation-dominated leptogenesis fails, and simultaneously makes the primordial gravitational-wave spectrum carry a direct record of that history. Concretely, replacing $H_{\\rm RD}$ with $H_{\\rm NS}=H_{\\rm RD}[1+(T/T_R)^{3w-1}]^{1/2}$ in the Boltzmann equations inserts a factor $J_1$ that lowers the effective washout from $\\Gamma_1/H_1\\simeq600$ to $\\Gamma_1/(H_1J_1)$; for $w=0.6$ this yields the correct $Y_B$ for $M_1=10^9$--$10^{11}$ GeV with $T_R/M_1$ between $2.4\\times10^{-9}$ and $1.8\\times10^{-6}$. The gravitational-wave spectral energy density becomes $\\Omega_{\\rm GW}(k)=\\Omega_{\\rm flat}(k/k_R)^{2(3w-1)/(1+3w)}$ between the kination-to-radiation transition scale $k_R$ and the end-of-inflation scale $k_e$, so a stiff epoch is a blue tilt whose slope is set by $w$. Combining both, the paper identifies benchmark points for $w=0.6$ that are simultaneously safe under the $N_{\\rm eff}$ bound and above the SNR=10 threshold for DECIGO, and a two-epoch case ($w_2=1$, $w_1=2/3$) in which only a small triangular region near $M_1\\simeq10^{10}$ GeV survives both cuts. The claimed novelty is indirect: observing the shape of the primordial gravitational-wave spectrum could probe the same high-scale leptogenesis that cannot be tested in the laboratory.","claim_key":"core","tier":"stated","source":"verdict_pith","method":"signals","confidence":0.8,"assigned_at":"2026-09-15T03:44:17.328221+00:00","lean_module":null,"lean_decl":null,"lean_status":null,"reality_plus_commit":null,"paper_title":"Leptogenesis in Brane-modified cosmology: Signatures in primordial gravitational waves","paper_submitted_at":"2026-08-10T16:33:52+00:00"},{"claim_id":2356067,"arxiv_id":"2608.08708","paper_version":1,"claim_text":"The central claim is that a Kähler-driven tribrid inflation mechanism, previously studied with the superpotential cutoff fixed to $m_P$, remains viable and becomes far more flexible when the cutoff $M_s$ is treated as an independent scale, and that flipped $SU(5)$ supplies the particle content that makes it work. A vector-like pair $10_V + \\overline{10}_V$ provides a $D$-flat inflaton direction along $N^c_1$ and $\\overline{N}^c_V$, a $Z_2$ removes the renormalizable mass and hybrid coupling, and supergravity corrections produce the single-field potential $V(\\phi) = \\mu_s^4(1 + \\kappa_\\phi \\phi^2/m_P^2 + \\delta_\\phi \\phi^4/m_P^4)$. With $\\kappa_\\phi>0$, $\\delta_\\phi<0$, this potential gives sub-Planckian red-tilted inflation; fixing $n_s$ to the ACT DR6/Planck value and imposing the running bound, the scan yields symmetry-breaking scales $M \\gtrsim 10^{16}$ GeV, approaching $M_{\\rm GUT}$, and tensor-to-scalar ratios from $3\\times10^{-10}$ to $0.02$, with a substantial portion above $10^{-3}$. After the waterfall, the inflaton is the lightest right-handed sneutrino; its decay reheats the universe to $10^6$ GeV and generates the observed baryon asymmetry via non-thermal leptogenesis.","claim_key":"core","tier":"stated","source":"verdict_pith","method":"phrase","confidence":0.9,"assigned_at":"2026-09-15T03:43:55.379321+00:00","lean_module":null,"lean_decl":null,"lean_status":null,"reality_plus_commit":null,"paper_title":"Sneutrino Tribrid Inflation in Flipped $\\mathbf{SU(5)}$: Confronting ACT DR6 and Planck","paper_submitted_at":"2026-08-09T13:43:03+00:00"},{"claim_id":2071029,"arxiv_id":"2608.07623","paper_version":1,"claim_text":"Within the generic left-right symmetric model, promoting flavor symmetry to the $A_4$ modular group and choosing modular weights 4, 8 and 10 for the three left-handed lepton doublets and right-handed singlets yields a light neutrino mass matrix $M_\\nu = M_\\nu^{\\mathrm{I}} + M_\\nu^{\\mathrm{II}}$ that takes exactly the seven experimentally allowed two-zero textures. The zeros are not imposed by hand: a superpotential term is present only if the $A_4$ representations combine to a singlet and the modular weights of the fields sum to zero, so the allowed entries of $M_D$, $M_R$ and $M_L$ are fixed by the symmetry. By permuting the $A_4$ charges and modular weights of the lepton fields, the paper obtains classes B2 and B1 from weight 4, classes B4, B3, A2 and A1 from weight 8, and class C from weight 10. With these mass matrices, resonant leptogenesis gives a baryon asymmetry consistent with observation for B1, B2 and C, and the computed total effective Majorana mass for neutrinoless double $\\beta$ decay remains below the current experimental limit for all seven classes.","claim_key":"core","tier":"stated","source":"verdict_pith","method":"phrase","confidence":0.9,"assigned_at":"2026-09-15T03:43:55.379321+00:00","lean_module":null,"lean_decl":null,"lean_status":null,"reality_plus_commit":null,"paper_title":"A $\\Gamma_{3}$ modular symmetric approach for two-zero textures in left-right symmetric model","paper_submitted_at":"2026-08-07T09:47:26+00:00"},{"claim_id":1965674,"arxiv_id":"2608.06983","paper_version":1,"claim_text":"The central claim is that the predictive textural logic of Sequential Dominance survives the degeneration of the two lightest right-handed Majorana masses (M1≈M2≪M3), provided the light neutrino mass ordering is generated instead through a hierarchy of the Dirac Yukawa couplings. Within this Resonant Sequential Dominance framework, the TBC3 ansatz—setting the solar and atmospheric deviations from tribimaximal mixing equal to one another and the reactor deviation to a simple Cabibbo multiple—reproduces the current neutrino oscillation data to 1σ, and the 'Simple (√2,1; 1,2) Alignment' found through the Master Formula matches all five low-energy observables. The explicit A4×(Z3)^4×(Z2)^2 invariant Lagrangian realizes this alignment while keeping the heavy Majorana mass matrix diagonal up to dimension five, and a numerical solution of the coupled resonant-leptogenesis Boltzmann equations yields the observed baryon asymmetry for a small range of the heavy-mass splitting. The paper therefore claims to have constructed a complete, testable seesaw model that simultaneously fits oscillation data and accounts for the baryon asymmetry of the Universe.","claim_key":"core","tier":"stated","source":"verdict_pith","method":"phrase","confidence":0.9,"assigned_at":"2026-09-15T03:44:17.328221+00:00","lean_module":null,"lean_decl":null,"lean_status":null,"reality_plus_commit":null,"paper_title":"Leptogenesis via Resonant Sequential Dominance and TBC3 Mixing in a Type-I Seesaw Model","paper_submitted_at":"2026-08-07T09:03:34+00:00"},{"claim_id":1799461,"arxiv_id":"2608.05950","paper_version":1,"claim_text":"Within the SMEFT, the paper identifies seven CP-violating dimension-8 operators built from the Higgs doublet and SU(2)_L gauge fields and computes their effect on the standard non-contractible-loop sphaleron ansatz. Substituting the ansatz into the action and reducing to motion along the loop gives a one-dimensional action whose CP violation appears through a cubic term, $G(\\mu,T)\\,(\\mathrm{d}\\mu/\\mathrm{d}\\eta)^3$. The paper finds that $G_i(\\pi/2,T)$ is nonzero for $O_1$, $O_2$, $O_3$, $O_4$, and $O_5$, while $O_6$ and $O_7$ give $G=0$; explicit radial integrals for the five nonzero contributions are given in Eq. (3.12). Using a Boltzmann equation whose washout and source terms integrate over sphaleron-like configurations decoupling during the smooth electroweak crossover, the paper obtains the observed baryon-to-entropy ratio for each of the five operators in the effective-scale window of Eq. (4.5). It also notes that positivity bounds from causality and unitarity restrict $O_4$ and $O_5$ to the combination $O_4-O_5$ with $c_4=-c_5$, and that this combination still yields a nonvanishing source. Finally, comparing operator cutoffs from UV matching, the paper shows that one-loop-generated dimension-8 operators can contribute comparably to the two-loop-induced dimension-6 Weinberg operator.","claim_key":"core","tier":"stated","source":"verdict_pith","method":"signals","confidence":0.8,"assigned_at":"2026-09-15T03:44:17.328221+00:00","lean_module":null,"lean_decl":null,"lean_status":null,"reality_plus_commit":null,"paper_title":"Impact of dimension-8 SMEFT operators on baryogenesis via sphaleron decoupling","paper_submitted_at":"2026-08-06T12:20:59+00:00"},{"claim_id":1843365,"arxiv_id":"2608.05279","paper_version":1,"claim_text":"The paper's central claim is that the minimal framework — a misalignment-driven axion plus the Weinberg operator — makes a sharp, basis-dependent prediction for the baryon asymmetry, and that this prediction closes the vanilla Majoron window. In the $(1,2,3)$ neutrino-mass basis, the flavor-resolved Weinberg rates depend only on the neutrino masses, making the final asymmetry independent of all PMNS mixing angles and CP phases; the asymmetry then scales linearly with the initial misalignment angle $\\theta_i$ and with the anomaly coefficients. Adding cosmology, the small Majoron decay rate forces an early matter-dominated era whose entropy release dilutes the generated asymmetry below the observed value for any parameters satisfying $f_a \\gg T_{\\text{osc}}$. Axions with strong- or weak-sphaleron couplings decay faster, and the paper finds successful baryogenesis for $f_a$ in the $10^{15}$--$10^{17}$ GeV range, $T_{\\text{osc}} \\gtrsim$ a few $\\times 10^{11}$ GeV, and $\\theta_i \\gtrsim 10^{-2}$, under high-scale inflation and efficient reheating.","claim_key":"core","tier":"stated","source":"verdict_pith","method":"phrase","confidence":0.9,"assigned_at":"2026-09-15T03:44:17.328221+00:00","lean_module":null,"lean_decl":null,"lean_status":null,"reality_plus_commit":null,"paper_title":"Axion-driven spontaneous leptogenesis, precisely","paper_submitted_at":"2026-08-05T18:00:01+00:00"},{"claim_id":1844003,"arxiv_id":"2608.05269","paper_version":1,"claim_text":"The central claim is that a scalar leptoquark S charged as (3,1)_{1/3} under the SM gauge group and as a 3_bar_d under the flavor group, with couplings built only from the SM Yukawa spurions (A_ija = $\\alpha$ epsilon_ABC (Y_d)_Ai (Y_d)_Bj (Y_u)_Ca, B_i_a = $\\beta$ epsilon_ABC epsilon_abc (Y_d^dag)_iA (Y_u^dag)_bB (Y_u^dag)_cC with real $\\alpha$ and $\\beta$), produces a baryon asymmetry per decay epsilon_i whose CP-violating part is proportional to the Jarlskog invariant J. The one-loop propagator diagrams interfere with the tree diagrams, and the key identity is Im(C^i_{T,ud} $C^{{ik*}}$_{P,ud}) = -8 |$\\alpha$|^2 |$\\beta$|^2 $y_d^{2}$ $y_s^{2}$ $y_b^{2}$ $y_c^{2}$ $y_t^{4}$ J, up to Levi-Civita factors. Near resonance the kinematic function f_P^ik = $m_i^{2}$ ($m_k^{2}$ - $m_i^{2}$) / (($m_k^{2}$ - $m_i^{2}$)^2 + $m_k^{2}$ $Gamma_k^{2}$) can be of order 8 pi / D_k, giving epsilon_1^max ~ 0.15. The decays preserve B - L, so two cosmological scenarios are needed: either reheating below 130 GeV so sphalerons have decoupled, or adding right-handed neutrinos whose $\\Delta$ L = 2 washout converts a B+L asymmetry into a B-L asymmetry before sphalerons turn on.","claim_key":"core","tier":"stated","source":"verdict_pith","method":"phrase","confidence":0.9,"assigned_at":"2026-09-15T03:44:17.328221+00:00","lean_module":null,"lean_decl":null,"lean_status":null,"reality_plus_commit":null,"paper_title":"Baryogenesis via the CKM Matrix with Minimal Flavor Violation","paper_submitted_at":"2026-08-05T18:00:00+00:00"},{"claim_id":1181988,"arxiv_id":"2608.01890","paper_version":1,"claim_text":"On the paper's own terms, the central claim is that the BNT model's vector-like fermion triplets can serve as the source of the baryon asymmetry through thermal leptogenesis, in either of two lepton-number assignments for the scalar quadruplet. In the hierarchical regime the CP asymmetry avoids the Davidson-Ibarra-style bound because the Yukawa couplings are not tied to the small neutrino masses—the suppression comes from the tiny induced vacuum expectation value and loop factors—so the lightest triplet mass needs only be ≳3.5×10^7 GeV (for a mass ratio r=2). In the quasi-degenerate regime, the self-energy CP asymmetry is resonantly enhanced and the requirement becomes M_Σ1 ≥ 1.7 TeV, essent","claim_key":"core","tier":"stated","source":"verdict_pith","method":"phrase","confidence":0.9,"assigned_at":"2026-09-15T03:44:17.328221+00:00","lean_module":null,"lean_decl":null,"lean_status":null,"reality_plus_commit":null,"paper_title":"Thermal Leptogenesis in the BNT Model of Neutrino Mass","paper_submitted_at":"2026-08-03T08:31:58+00:00"},{"claim_id":2525259,"arxiv_id":"2607.28321","paper_version":1,"claim_text":"The paper's central claim is that retaining self-energy corrections changes the quasiparticle on-shell condition in a way that matters for CP-violating transport. Solving the Kadanoff–Baym equations to first order in the derivative expansion gives a fermionic spectral function whose first-order piece is proportional to $\\delta'(\\Omega_{s,i}^2)$, i.e., a shift of the quasiparticle shell. In the wall frame the effective shell is $\\Omega_{s,i,\\mathrm{eff}}^2 = \\Omega_{s,i}^2 + \\delta\\Omega_{s,i}^2$ with $\\delta\\Omega_{s,i}^2 = -\\frac{1}{\\tilde K^0}\\bigl[m'_{Ii}(K_z\\partial_{k_z}M_{Ri}-M_{Ri}\\partial_{k_z}K_z)-m'_{Ri}(K_z\\partial_{k_z}M_{Ii}-M_{Ii}\\partial_{k_z}K_z)\\bigr]$, where $M_{Ri}=m_{Ri}+a_{1s,H}$ and $M_{Ii}=m_{Ii}+a_{2s,H}$. Because the phase of the spacetime-dependent complex mass is CP odd, this shift changes sign for antiparticles and produces particle--antiparticle differences in group velocity and semiclassical force. For bosons the first-order flavor-diagonal shell correction vanishes identically, so no such CP-odd force appears at this order. In the limit of vanishing self-energy, the equations reduce to the known semiclassical Boltzmann equations.","claim_key":"core","tier":"stated","source":"verdict_pith","method":"signals","confidence":0.8,"assigned_at":"2026-09-15T03:44:15.866154+00:00","lean_module":null,"lean_decl":null,"lean_status":null,"reality_plus_commit":null,"paper_title":"Systematic derivation of the Boltzmann equation for electroweak baryogenesis","paper_submitted_at":"2026-07-30T14:55:40+00:00"},{"claim_id":840477,"arxiv_id":"2607.26681","paper_version":1,"claim_text":"The central discovery is an exact dimensional reduction: for a Hermitian mass-squared matrix M^2 = M_R^2 + i M_I^2, the requirement [M_R^2, M_I^2]=0 (Eq. 8) is algebraically equivalent to four constraints that collapse the 9 real parameters to 5 (A,B,C,x,y) and make the diagonalizing unitary U depend only on the two ratios x and y (Eq. 16). The physical CKM matrix is then U_u(x,y)^\\dagger U_d(x',y'), and its Jarlskog invariant takes the closed form J(x,y,x',y') in Eq. (23); evaluated on the fitted ratios it converges to |J0| ≈ 3.08e-5, in agreement with the measured world average. The same algebra enforces |p|=|p'|=|p*|=|p'*|, meaning four CKM elements share one magnitude — e.g., |V_ub|=|V_c","claim_key":"core","tier":"stated","source":"verdict_pith","method":"signals","confidence":0.8,"assigned_at":"2026-09-15T03:44:15.866154+00:00","lean_module":null,"lean_decl":null,"lean_status":null,"reality_plus_commit":null,"paper_title":"An Exact Geometric Framework for Flavor Mixing and CP Violation in the Standard Model","paper_submitted_at":"2026-07-29T09:31:31+00:00"},{"claim_id":870197,"arxiv_id":"2607.25491","paper_version":1,"claim_text":"In the regularized four-dimensional Einstein-Gauss-Bonnet action with a rainbow metric, the modified Friedmann equation becomes alpha H^4 + H^2 = rho/(3 M_P^2). Because the Ricci scalar is R = 6 H' + 12 H^2, the alpha H^4 term prevents R from being constant during radiation domination. Using the standard gravitational-baryogenesis interaction S_int = (1/M_*^2) ∫ d^4x sqrt(-g) (∂_mu R) J^mu, the paper computes the induced chemical potential mu_B = R-dot/M_*^2 and hence the baryon-to-entropy ratio at the decoupling temperature. It finds a nonzero asymmetry at w = 1/3 in the high-curvature regime, and in the perturbative regime the leading term vanishes at w = 1/3 while the order-alpha Gauss-Bo","claim_key":"core","tier":"stated","source":"verdict_pith","method":"phrase","confidence":0.9,"assigned_at":"2026-09-15T03:44:15.866154+00:00","lean_module":null,"lean_decl":null,"lean_status":null,"reality_plus_commit":null,"paper_title":"Gravitational Baryogenesis in Rainbow Gauss-Bonnet gravity","paper_submitted_at":"2026-07-28T09:27:20+00:00"},{"claim_id":844514,"arxiv_id":"2607.24932","paper_version":1,"claim_text":"A novel three-loop scotogenic topology dynamically generates the inverse-seesaw lepton-number-violating mass matrix µ, while the same residual Z2⊗Z3 symmetry that enforces the radiative origin stabilizes the lightest particles of up to three independent dark sectors, allowing single-, two-, and three-component dark-matter scenarios that can reproduce Ωh²≃0.12 under existing experimental constraints and admit points consistent with the observed baryon asymmetry in simplified leptogenesis estimates.","claim_key":"core","tier":"stated","source":"verdict_pith","method":"phrase","confidence":0.9,"assigned_at":"2026-09-15T03:43:55.379321+00:00","lean_module":null,"lean_decl":null,"lean_status":null,"reality_plus_commit":null,"paper_title":"Multi-component Dark Matter in a Novel Three-Loop Inverse Scotogenic Seesaw Model","paper_submitted_at":"2026-07-27T18:00:05+00:00"},{"claim_id":857958,"arxiv_id":"2607.24026","paper_version":1,"claim_text":"The central claim is that the sphaleron rate during a first-order electroweak phase transition can be computed gauge-invariantly to O(g⁴) in the 3D EFT of SU(2)+Higgs theory, even though the barrier that sustains the transition comes from integrating out the spatial gauge fields. After rescaling by the gauge-invariant scalar minimum v₃(x,y), the sphaleron action is kinetic-dominated and well approximated by S₃D ≈ 29·v₃(x,y), with x = λ₃/g₃² and y = μ₃²/g₃⁴; the washout exponent is then integrated accurately, replacing vc/Tc ≳ 1 with a gauge-invariant condition on x. In the real-triplet extension, the resulting washout is large across most of the parameter space, strongly constraining such mo","claim_key":"core","tier":"stated","source":"verdict_pith","method":"signals","confidence":0.8,"assigned_at":"2026-09-15T03:44:15.866154+00:00","lean_module":null,"lean_decl":null,"lean_status":null,"reality_plus_commit":null,"paper_title":"Electroweak Baryogenesis: Advances in Sphaleron Rate Calculations and Implications of Thermal Phase Transitions","paper_submitted_at":"2026-07-27T05:53:12+00:00"},{"claim_id":882327,"arxiv_id":"2607.22252","paper_version":1,"claim_text":"Rainbow cosmology with f=1+E/2E_P, g=1 modifies the Friedmann and scalar-field equations so that the scale factor grows as t early and t^{1/2} late, and the solutions pass from damped oscillations to Bessel functions of order 1/4. Matching at t_c=1/M fixes constants; time-averaging the U(1) Noether charge gives ⟨ρ⟩=(3/4)λ A² M^{3/2} sin²(1/√3) t^{-3/2}. Photon density also decays as t^{-3/2}, so η→29.29 λ(E_GUT/M)^4(M/M_P)^(3/2). Setting η=6.1×10⁻¹⁰ constrains λ∈10⁻¹⁸–10⁻⁷ and M∈10⁻⁴E_GUT–E_GUT, a viable non-SUSY mechanism if the scalar's U(1) charge represents baryon number.","claim_key":"core","tier":"stated","source":"verdict_pith","method":"signals","confidence":0.8,"assigned_at":"2026-09-15T03:44:15.866154+00:00","lean_module":null,"lean_decl":null,"lean_status":null,"reality_plus_commit":null,"paper_title":"Dynamical Baryogenesis in Rainbow Cosmology","paper_submitted_at":"2026-07-24T12:35:33+00:00"},{"claim_id":895070,"arxiv_id":"2607.21008","paper_version":1,"claim_text":"Starting from the supersymmetric Affleck–Dine potential, the curvature perturbation from Q-ball decay is ζ = (2/3 − α/6) f_dec δφ/φ, with α = −2 for gravity-mediated-type Q-balls and α ≈ 0 for delayed-type Q-balls. The correlated baryon isocurvature perturbation is proportional to ζ, hence too large. The paper's key step is to add thermally produced gravitino dark matter that decouples before Q-ball decay, giving S_dm,corr = −3ζ, and to demand that the weighted sum of baryon and dark-matter isocurvature vanish. That requirement yields f_dec ≈ 2nΩ_B/[(4−α)Ω_m], about 0.314 for n=6, α=−2 and 0.471 for n=6, α=0. With the CMB normalization fixing φ_osc in terms of H_I, the authors show that BBN,","claim_key":"core","tier":"stated","source":"verdict_pith","method":"signals","confidence":0.8,"assigned_at":"2026-09-15T03:44:15.866154+00:00","lean_module":null,"lean_decl":null,"lean_status":null,"reality_plus_commit":null,"paper_title":"Reviving the Affleck-Dine Curvaton Scenario with Compensated Isocurvature Perturbations","paper_submitted_at":"2026-07-23T07:45:06+00:00"},{"claim_id":918016,"arxiv_id":"2607.18803","paper_version":1,"claim_text":"In this model, the right-handed neutrino Majorana mass matrix is built from weight -2 polyharmonic Maaß forms, M_R = M_0[(β_R/3)Y_3^{(-2)} + γ_R Y_1^{(-2)}], where Y_3 is an A4 triplet and Y_1 is an A4 singlet. After unitary diagonalisation, the spectrum naturally satisfies M_N1 > M_N2 ≈ M_N3, because the singlet contribution has a two-fold degeneracy and the fitted parameter region keeps β_R far below γ_R. That tiny splitting, ΔM23, is comparable to the heavy-neutrino decay width, resonantly enhancing the self-energy CP asymmetry in the decays of N2 and N3. The paper shows that, in the strong washout regime, this yields the observed baryon asymmetry with M_N3 around 10^6 GeV, far below the","claim_key":"core","tier":"stated","source":"verdict_pith","method":"phrase","confidence":0.9,"assigned_at":"2026-09-15T03:43:55.379321+00:00","lean_module":null,"lean_decl":null,"lean_status":null,"reality_plus_commit":null,"paper_title":"A Non-Holomorphic Modular $A_4$ Framework for Resonant Leptogenesis with Gravitational Wave Signatures","paper_submitted_at":"2026-07-21T07:30:45+00:00"},{"claim_id":919502,"arxiv_id":"2607.18581","paper_version":1,"claim_text":"The central assertion is stated in §5: \"the emergence of expansion-induced anisotropy decreases both η and ζ for a baryonless isotropic medium as well as for a baryon asymmetric isotropic medium\" while \"the baryon asymmetric medium yields larger values of η and ζ as compared to their counterparts in the baryonless medium.\" If correct, the model predicts that early-time momentum anisotropy and finite baryon asymmetry have opposite, quantitatively significant effects on momentum transport and derived observables (Pr, Re, η/s, ζ/s).","claim_key":"core","tier":"stated","source":"verdict_pith","method":"phrase","confidence":0.9,"assigned_at":"2026-09-15T03:43:55.379321+00:00","lean_module":null,"lean_decl":null,"lean_status":null,"reality_plus_commit":null,"paper_title":"Transport phenomena and observables associated with viscous properties of an anisotropic hot QCD medium at finite baryon asymmetry","paper_submitted_at":"2026-07-20T23:35:13+00:00"},{"claim_id":941624,"arxiv_id":"2607.16398","paper_version":1,"claim_text":"Eq. (2.37): in the regime χ≡ω²−k²≫M_h², \\tilde ϕ(χ) = −2V'(2vφ)χ⁻² + O(χ⁻³), so the spectral density F(χ) ∝ [V'(2vφ)]²χ⁻⁴ for both elastic and inelastic collisions. If true, superheavy-particle production is localized at the collision instant and the leading rate depends on the scalar potential only through V'(2vφ), independent of the rest of the potential.","claim_key":"core","tier":"stated","source":"verdict_pith","method":"signals","confidence":0.8,"assigned_at":"2026-09-15T03:44:15.866154+00:00","lean_module":null,"lean_decl":null,"lean_status":null,"reality_plus_commit":null,"paper_title":"Particle productions during collisions of highly boosted bubble walls","paper_submitted_at":"2026-07-17T18:00:02+00:00"},{"claim_id":968358,"arxiv_id":"2607.13592","paper_version":1,"claim_text":"The central claim is that a dimension-five derivative interaction between an axion-like inflaton and a Majorana fermion—interpreted as the lightest right-handed neutrino—can, by itself, generate the observed baryon asymmetry through non-thermal leptogenesis. The rolling inflaton acts as a time-dependent axial background that shifts the effective momentum of each helicity mode by a term proportional to the inflaton velocity; this both imprints a helicity asymmetry during inflation and drives repeated non-adiabatic production whenever the shifted momentum crosses zero during preheating. The paper computes the resulting abundance in the two opposite lifetime limits and shows that both can match","claim_key":"core","tier":"stated","source":"verdict_pith","method":"phrase","confidence":0.9,"assigned_at":"2026-09-15T03:44:15.866154+00:00","lean_module":null,"lean_decl":null,"lean_status":null,"reality_plus_commit":null,"paper_title":"Right-Handed Neutrino Production by an Axion-like Inflaton: Implications for Leptogenesis","paper_submitted_at":"2026-07-15T08:33:37+00:00"},{"claim_id":801639,"arxiv_id":"2607.12039","paper_version":1,"claim_text":"A combined theoretical and experimental analysis of the real-singlet extension of the Standard Model shows that the extra scalar, through its portal coupling and mixing with the Higgs, can lift the currently metastable electroweak vacuum toward absolute stability while remaining compatible with a strong first-order electroweak phase transition.","claim_key":"core","tier":"stated","source":"verdict_pith","method":"signals","confidence":0.8,"assigned_at":"2026-09-15T03:44:15.866154+00:00","lean_module":null,"lean_decl":null,"lean_status":null,"reality_plus_commit":null,"paper_title":"Constraining the real singlet extension of the Standard Model: implications for vacuum stability","paper_submitted_at":"2026-07-13T18:00:14+00:00"},{"claim_id":765633,"arxiv_id":"2607.11147","paper_version":1,"claim_text":"Conversion-driven freeze-out simultaneously accounts for the observed dark-matter relic density and the baryon asymmetry of the Universe in quark-philic flavored dark-matter models. Viable solutions exist throughout the conversion-driven region for dark-matter masses from a few hundred GeV to about 1.2 TeV and mediator–dark-matter mass splittings up to about 20 GeV, with the required CP asymmetry supplied by resonant thermal corrections when the two dark-matter flavors are nearly degenerate.","claim_key":"core","tier":"stated","source":"verdict_pith","method":"phrase","confidence":0.9,"assigned_at":"2026-09-15T03:44:15.866154+00:00","lean_module":null,"lean_decl":null,"lean_status":null,"reality_plus_commit":null,"paper_title":"Conversion-Driven Baryogenesis in Flavored Dark Matter Models","paper_submitted_at":"2026-07-13T06:38:29+00:00"},{"claim_id":728965,"arxiv_id":"2607.09282","paper_version":1,"claim_text":"The central discovery is a mechanism for evading the entropy-dilution problem of low-temperature leptogenesis. For n>2, the effective inflaton mass m_ϕ(a) decreases with expansion; once it drops below twice the lightest right-handed neutrino mass at a=a⋆, direct inflaton decay into RHNs ceases. Because a⋆ lies before sphaleron freeze-out, the B−L asymmetry has already been generated and converted while sphalerons are active, and the remaining entropy production merely redshifts the comoving asymmetry without the extra (T_rh/T_fo)^5 dilution that kills the n=2 case. Equation (4.9) gives the resulting final baryon asymmetry: independent of T_rh for n=4 and proportional to T_rh^{-1/3} for n=6.","claim_key":"core","tier":"stated","source":"verdict_pith","method":"phrase","confidence":0.9,"assigned_at":"2026-09-15T03:44:15.866154+00:00","lean_module":null,"lean_decl":null,"lean_status":null,"reality_plus_commit":null,"paper_title":"Leptogenesis with sub-electroweak-scale reheating temperature","paper_submitted_at":"2026-07-10T10:50:33+00:00"},{"claim_id":657970,"arxiv_id":"2607.08663","paper_version":1,"claim_text":"The paper's central result is that for inflaton potentials with a quartic minimum (k=4, giving radiation-like reheating with equation of state w=1/3), the inflaton's decreasing effective mass causes the right-handed neutrino production channel (φ→NN) to shut off kinematically at an early, fixed scale factor a* determined only by the inflaton and neutrino masses. This decouples the final baryon asymmetry from the reheating temperature entirely: the dilution factor that normally kills low-reheating leptogenesis cancels because both the baryon density and the entropy density scale with the reheating temperature in compensating ways. The resulting compact formula (Eq. 5.21) shows Y_B depends on","claim_key":"core","tier":"stated","source":"verdict_pith","method":"phrase","confidence":0.9,"assigned_at":"2026-09-15T03:44:15.866154+00:00","lean_module":null,"lean_decl":null,"lean_status":null,"reality_plus_commit":null,"paper_title":"Leptogenesis and Low Reheating Temperatures","paper_submitted_at":"2026-07-09T16:32:17+00:00"},{"claim_id":668371,"arxiv_id":"2607.06811","paper_version":1,"claim_text":"Particle cosmology did not exist as a recognized subfield of particle physics before roughly 1980; by the mid-1990s it was settled and remaining. The transition is marked by two community gatherings—the 1984 Inner Space/Outer Space conference that first assembled theorists, experimentalists, relativists and astronomers under one roof, and the 1994 Snowmass Summer Study that integrated particle and nuclear astrophysics into long-range planning—with Fermilab and the University of Chicago providing the first dedicated institutional home.","claim_key":"core","tier":"stated","source":"verdict_pith","method":"signals","confidence":0.8,"assigned_at":"2026-09-15T03:44:15.866154+00:00","lean_module":null,"lean_decl":null,"lean_status":null,"reality_plus_commit":null,"paper_title":"Particle Cosmology: 1980-2000","paper_submitted_at":"2026-07-07T21:17:18+00:00"},{"claim_id":697520,"arxiv_id":"2607.03085","paper_version":1,"claim_text":"Co-genesis of the observed baryon asymmetry Y_B ≃ 8.7 × 10^{-11} and the dark-matter density is achieved by the rotation of a spectator axion-like particle whose vacuum manifold flips orientation at the end of inflation because of a periodic non-minimal coupling ξ[1-cos(ϕ/f)]R; success requires ξ ∼ (f/m_P)^{2} to avoid fragmentation of the rotating condensate.","claim_key":"core","tier":"stated","source":"verdict_pith","method":"phrase","confidence":0.9,"assigned_at":"2026-09-15T03:44:15.866154+00:00","lean_module":null,"lean_decl":null,"lean_status":null,"reality_plus_commit":null,"paper_title":"Flipped rotating axion: Baryogenesis and Dark Matter","paper_submitted_at":"2026-07-03T08:18:22+00:00"},{"claim_id":625690,"arxiv_id":"2606.31812","paper_version":1,"claim_text":"Particle cosmology is the branch of science that seeks to understand the birth and evolution of the Universe by applying the principles of particle physics, bringing together the physics of the very small with the physics of the very large, where the early Universe serves as a natural laboratory offering unique insights into phenomena that may never be accessible on Earth.","claim_key":"core","tier":"stated","source":"verdict_pith","method":"signals","confidence":0.8,"assigned_at":"2026-09-15T03:44:14.512573+00:00","lean_module":null,"lean_decl":null,"lean_status":null,"reality_plus_commit":null,"paper_title":"Particle Cosmology","paper_submitted_at":"2026-06-30T15:27:18+00:00"},{"claim_id":479892,"arxiv_id":"2606.24277","paper_version":1,"claim_text":"The authors establish that non-holomorphic S'4 modular symmetry, realized with level 4 polyharmonic Maaß forms of weights between -4 and 6, permits the construction of lepton models that accommodate current neutrino oscillation data with a minimal number of parameters. For normal ordering, 36 such models exist, grouped into three categories of twelve models each, distinguished by the representation assignment of the charged lepton field E^c_1. Representative models from each category produce precise predictions for the neutrino mixing angles and CP phases. Moreover, two of these models achieve successful thermal leptogenesis without flavor effects, matching the observed baryon asymmetry with","claim_key":"core","tier":"stated","source":"verdict_pith","method":"phrase","confidence":0.9,"assigned_at":"2026-09-15T03:43:55.379321+00:00","lean_module":null,"lean_decl":null,"lean_status":null,"reality_plus_commit":null,"paper_title":"Non-holomorphic $S^{\\prime}_{4}$ modular symmetry for leptons and leptogenesis","paper_submitted_at":"2026-06-23T08:00:26+00:00"},{"claim_id":491880,"arxiv_id":"2606.22642","paper_version":1,"claim_text":"The Yukawa interactions between the SU(2)_L fermion triplets and the complex scalar singlet χ induce radiative corrections that generate a Coleman-Weinberg effective potential. This potential creates a dynamical bias term lifting the degeneracy among the three Z3 vacua, which triggers the annihilation of unstable domain walls. The framework simultaneously explains neutrino masses, produces the observed baryon asymmetry via leptogenesis, and yields a gravitational-wave spectrum within reach of future detectors.","claim_key":"core","tier":"stated","source":"verdict_pith","method":"phrase","confidence":0.9,"assigned_at":"2026-09-15T03:43:55.379321+00:00","lean_module":null,"lean_decl":null,"lean_status":null,"reality_plus_commit":null,"paper_title":"Radiative Lifting of $\\mathbb{Z}_3$ Domain-Wall Degeneracy in a Type-III Seesaw Model: Implications for Leptogenesis and Gravitational Waves","paper_submitted_at":"2026-06-21T19:02:57+00:00"},{"claim_id":524884,"arxiv_id":"2606.11517","paper_version":1,"claim_text":"Within the U(1)_{B-L} framework the vacuum expectation value of the complex scalar φ simultaneously sets the masses of the heavy neutrinos N_{1,2} and the Majorana dark-matter fermion χ through Yukawa couplings; a higher-dimensional operator induces the small lepton-number-violating parameter that generates light active neutrinos together with TeV-scale heavy states and sizable active-sterile mixing, while the same scalar and gauge-mediated channels fix both the observed dark-matter density and the baryon asymmetry.","claim_key":"core","tier":"stated","source":"verdict_pith","method":"phrase","confidence":0.9,"assigned_at":"2026-09-15T03:43:55.379321+00:00","lean_module":null,"lean_decl":null,"lean_status":null,"reality_plus_commit":null,"paper_title":"Probing TeV-Scale Inverse-Seesaw Leptogenesis and Majorana Dark Matter in $U(1)_{B-L}$ Models at Multi-TeV Muon Colliders","paper_submitted_at":"2026-06-09T23:33:21+00:00"},{"claim_id":552710,"arxiv_id":"2606.04229","paper_version":1,"claim_text":"The central discovery is a new implementation of baryon asymmetry computation in BSMPT based on the WKB ansatz that generalizes the transport equations to an arbitrary number of moments, with two truncation schemes implemented and the VEV profile derived from the equations of motion. Validation on a simple benchmark confirms the approach, and a detailed analysis in the C2HDM reveals dependencies on the number of moments, truncation scheme, wall velocity, VEV profile, phase transition strength, and CP violation, including an uncertainty analysis and connection to gravitational wave signals at LISA. The implementation applies to any extended Higgs sector with arbitrary VEV directions barring t","claim_key":"core","tier":"stated","source":"verdict_pith","method":"phrase","confidence":0.9,"assigned_at":"2026-09-15T03:44:14.512573+00:00","lean_module":null,"lean_decl":null,"lean_status":null,"reality_plus_commit":null,"paper_title":"A Deep Dive into Baryon Asymmetry -- the C2HDM","paper_submitted_at":"2026-06-02T21:26:27+00:00"},{"claim_id":564554,"arxiv_id":"2606.00830","paper_version":1,"claim_text":"In SMEFT the decay n → K⁺ℓ⁻ arises at dimension seven while the (B-L)-conserving decay n → K⁻ℓ⁺ requires dimension-ten operators that would be accompanied by lower-dimensional (B+L)-violating decay modes. An observation of n → Kℓ in the absence of other modes such as p → π⁰ℓ⁺ would therefore strongly suggest that (B-L) is violated.","claim_key":"core","tier":"stated","source":"verdict_pith","method":"signals","confidence":0.8,"assigned_at":"2026-09-15T03:44:14.512573+00:00","lean_module":null,"lean_decl":null,"lean_status":null,"reality_plus_commit":null,"paper_title":"$n \\to K\\ell$ and the baryon asymmetry of the universe","paper_submitted_at":"2026-05-30T18:03:43+00:00"},{"claim_id":568638,"arxiv_id":"2605.31454","paper_version":1,"claim_text":"A CP-conserving non-real 3x3 orthogonal matrix parametrized by two real angles and one imaginary parameter can be constructed so that the only CP-violating phases in the Yukawa couplings are those of the PMNS matrix; under this hypothesis, Dirac-phase CP violation alone suffices to generate the observed baryon asymmetry through low-scale leptogenesis for quasi-degenerate heavy neutrinos whose mixings are testable at colliders.","claim_key":"core","tier":"stated","source":"verdict_pith","method":"phrase","confidence":0.9,"assigned_at":"2026-09-15T03:44:13.051277+00:00","lean_module":null,"lean_decl":null,"lean_status":null,"reality_plus_commit":null,"paper_title":"Dirac-Phase CP-Violation in the Low-Scale Type-I Seesaw with Three Right-Handed Neutrinos","paper_submitted_at":"2026-05-29T15:47:54+00:00"}]}