Relativistic QMD equations match exact mean-field forces
Density-dependent potentials now come from a variational derivation, not Monte-Carlo integration.
hep-ph
High Energy Physics - Phenomenology
Theoretical particle physics and its interrelation with experiment. Prediction of particle physics observables: models, effective field theories, calculation techniques. Particle physics: analysis of theory through experimental results.
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Flux freezing explains magnetic cascade in cosmic collapse
A single advection equation, with collapse cut off at the Jeans scale, reproduces magnetized simulation spectra.
· “Forward cascade of large-scale primordial magnetic fields during structure formation”
A cosmic wall would leave parallel tracks in ancient mica
If one crossed Earth in the last half-billion years, existing mica data already bound its strength.
Thermal shear cancels vorticity exactly in one spin formula
An analytic Gubser-flow model shows the sign puzzle has a formulation-dependent answer, including an exact zero.
New soft-gluon term dominates low-pT J/psi production
Outranks the usual color-octet shape functions by 1/v and depends on one well-measured constant.
· “The role of the soft scale for J/psi production in the transverse momentum dependent framework”
R_Λc theory lands at 0.29, just above LHCb's 0.242
A six-form-factor pQCD calculation matched to lattice data yields SM predictions for branching fractions and angular observables.
· “Investigation of Λ_(b)to Λ_(c) ell^-overlineν_ell Decays in Perturbative QCD Approach”
Color-superconducting gap may be half the accepted size
A renormalization-group treatment with quark self-energy fixes the pairing gap's coefficient, halving the standard value.
· “Renormalization group analysis of color superconductivity revisited”
Peak at 7.42 GeV predicted for new tetraquark molecule
A b c anti-s anti-d molecule in Upsilon weak decay would leave a peak plus a tell-tale threshold dip.
· “T_(bcbar s) states in the process Upsilon to D⁻ bar B⁰ D_s⁺”
A 6.23 × 10¹⁴ g primordial black hole hits its Page time now
The narrow mass window still evaporating today is the key target for testing whether black hole information is recovered.
· “Page Time of Primordial Black Holes in the Standard Model and Beyond”
Pairing gap from repulsion scales as ℓ
Zero-sound resummation of the Kohn anomaly makes high-partial-wave pairing exponentially stronger.
Faint sources explain outer Galaxy's diffuse gamma-ray excess
A source-count extrapolation from the LHAASO catalog closes the outer-Galaxy gap but leaves the inner Galaxy needing extra components.
· “Contribution of Unresolved Sources to Diffuse Gamma-Ray Emission from the Galactic Plane”
Pion cloud sets proton's TMD tail with no free parameters
The d-bar minus u-bar asymmetry falls exponentially at large transverse separation, something perturbative QCD cannot produce.
Fluctuating magnetic fields always boost low-energy fusion
The mechanism could resolve the lithium problem by altering 7Be reaction rates in the early universe or in the lab.
· “Light nuclei under magnetic field and the lithium problem”
Herwig 7.4 ships a Lund string tune fit to LEP
With the shower fixed, switching string vs cluster hadronization now quantifies a key non-perturbative uncertainty.
· “Herwig 7 with the Lund String Model: Tuning and Comparative Hadronization Studies”
Graph network measures Higgs signal strength with calibrated intervals
Two GNN branches separate stable kinematics from systematics; profiling keeps 68% coverage in 50,000 trials.
· “Higgs Signal Strength Estimation with Machine Learning under Systematic Uncertainties”
Loop corrections to large-scale gravitational waves cancel exactly
Small-scale inflation noise cannot shift long-wavelength gravitational waves: symmetry cancels the one-loop terms.
· “One-loop corrections to infrared GWs is forbidden by symmetries”
Primordial black holes can forge the universe's matter surplus
A spacetime chemical potential biases Hawking emission, and full numerical evolution reproduces the observed baryon excess.
· “Baryogenesis via Asymmetric Evaporation of Primordial Black Holes”
Neutron star data set a ceiling on the quark-pairing gap
Updated X-ray and gravitational-wave observations leave the 95% bound on the dense-matter pairing gap nearly unchanged.
· “Updated Astrophysical Equation-of-State Constraints on the Color-Superconducting Gap”
XYZ hadrons break the quark-model pattern
Conventional quarkonia fit potential models below threshold; the charged, near-threshold XYZ states do not.
ALP collider searches reduce to one shift-symmetric EFT
A pedagogical review connects the symmetry, operators, production, decay, lifetime, and current bounds on the ALP-photon coupling.
1–10 mHz: dark-matter phase transition predicted inside LISA's band
The same TeV-scale parameters that fix dark matter would be probed by LISA and a six-top search at the HL-LHC.
Renormalization fixes QCD's factorial tail from four known terms
An exact inversion turns low-order coefficients into a Borel-summed tail, making alpha_s and quark masses precise.
Full NLO QCD+EW corrections now automated for arbitrary SM processes
The upgrade makes mixed QCD and electroweak corrections a standard, user-level step in collider simulations.
Hidden-strangeness baryon decays mostly to KΛ(1405)
Loop-based widths put πN*(1535) on par with πN, making KπΣ final states a realistic search channel.
New LHCb exotic peak explained as a DK molecule
Coupled-channel fit reproduces the spectra with no Breit-Wigner states: both resonances appear as mesonic molecules.
· “Scalar resonance contributions in the D_(s1)(2460)⁺ rightarrow D_(s)⁺π⁺π⁻ reaction”
Soft-photon logarithms survive where QED is infrared-finite
Long-range Coulomb acceleration forces universal retarded-time tails into the electromagnetic waveform in every dimension.
· “Logarithmic Soft Photon Theorem and Waveform Tails in Higher Dimensions”
Requiring QCD mixing alone orders the axiverse
Well-defined QCD mixing forces ALP masses into a factor-of-two ladder and leaves decay constants near f_a0 empty.
Lowest Landau level alone sets quark-matter pressure
Free lowest-Landau-level pressure with running mass matches lattice data and caps magnetar masses.
Most string axions stay heavy in heterotic models
Perturbativity caps the volume, so almost all 2-form axions get large masses—except one fibred corner.
Hadronic matter beats quark matter to eight times nuclear density
Quark onset and chiral restoration part ways when repulsion is shared by both phases.
· “Suppression of dynamical momentum-space shell by chiral symmetry”
Dark matter must outweigh 8e-18 eV
A 4-parsec dwarf pushes the dark matter mass floor past 8×10^-18 eV.
· “Updated bounds on ultra-light dark matter from the tiniest galaxies”
Cosmic-ray boosts tighten LZ dark matter limit 10^7-fold
At 1 keV, realistic models exclude down to ~10^-40 cm^2, far below the flat-cross-section bound.
Bound doubly charmed pentaquarks predicted by QCD sum rules
Masses near 4.1-4.7 GeV sit below meson-baryon thresholds, including clean triply charged signals.
· “Doubly charmed pentaquark states with strangeness S=0, -1”
Omega_b* weak decay widths: ~2.5e-12 GeV
Standard Model benchmarks for the excited Omega_b's b-to-c weak decay, testable at hadron colliders.
· “Semileptonic Ω_(b)^(*)rightarrowΩ_(c)^(*) ell bar{ν}_(ell) transition in QCD”
A single calculable vacuum makes a high-quality QCD axion
The predicted scale sets axion mass and suppresses gravity-induced PQ violation.
Neutron dark decay survives in stars with tuned symmetry energy
Tuning the nuclear symmetry energy and dark-sector repulsion keeps 2-solar-mass neutron stars compatible with the decay channel.
· “Neutron Dark Decay in Neutron Stars: The Role of the Symmetry Energy”
Fourteen molecular pentaquarks predicted near 4-11 GeV
If right, they bind by only 0.1-33 MeV below kaon-baryon thresholds, with concrete quantum numbers for searches.
· “Prediction of QQqqbar{s} molecular pentaquarks within the extended local hidden gauge approach”
Baryon-number violation may live at 1 TeV
Because proton decay is doubly suppressed, the new scalars stay at TeV masses and the LHC can produce them.
· “A Baryon and Lepton Number Violation Model Testable at the LHC”
P-wave wins over spin-triplet pairing in dense quark matter
A helicity-amplitude analysis of one-gluon exchange revises which condensate forms when only one quark flavor pairs.
Lepton colliders could discover leptophilic Z-l down to g~10^-4
Circular machines like FCC-ee probe tiny couplings; CLIC extends the search to multi-TeV masses.
· “Searching for the Leptophilic Gauge Boson Z_(l) at Future e⁺e⁻ Colliders”
Dark matter freeze-in rings at 50 billion hertz
Future high-frequency cavity detectors could catch the UV freeze-in gravitational-wave background.
· “Gravitational Wave Spectrum from the Production of Dark Matter via the freeze-in Mechanism”
Adopting the LUX photon PDF shrinks Higgs spread to 3-4 percent
Remaining cross-section differences trace to baseline QCD fits, not photon modeling, sharpening LHC Higgs predictions.
Neutron stars: most nucleon mass arises beyond chiral symmetry
Mass–radius data from compact stars force the chiral-invariant mass above half the proton mass.
· “Implication of neutron star observations to the origin of nucleon mass”
Neutron stars may be dark matter wrapped in a nucleonic shell
If 1% of neutron decays emit an electron but no proton, compact stars would be mostly dark fermions.
Dark matter makes quark stars more compact
A two-fluid model says dark matter fraction and quark anisotropy set the curves that X-ray and pulsar timing can test.
· “Exploring the Structural Properties of Anisotropic Dark Matter-Admixed Quark Stars”
Radiation reaction fixes the G^4 angular momentum loss
A closed form now resums every half-odd post-Newtonian correction at arbitrary velocity.
· “Radiation-Reaction and Angular Momentum Loss at mathcal{O}(G⁴)”
Hardest two-loop six-point Feynman integrals drop out in 4D
Planar two-loop 2-to-4 master integrals shrink to a 202-integral pure basis with a 128-letter alphabet.
· “Planar Six-Point Feynman Integrals for Four-Dimensional Gauge Theories”
Zc(3900) pole position decides if DDD* is bound
Measure the Zc(3900) pole: it tells whether the three-hadron DDD* state is bound or not.
· “Constraining the DDD^* three-body bound state via the Z_c(3900) pole”
One in 1.4 trillion J/psi decays may create true muonium
The predicted rate is too small for today's data, but a super tau-charm factory could catch a few events per year.
Method puts four-loop gravity integral into canonical form
Despite apparent singularities, this Calabi-Yau integral admits ε-factorized form.
· “Calabi-Yau Feynman integrals in gravity: varepsilon-factorized form for apparent singularities”
Block Lanczos supersedes GEVP for lattice QCD spectra
One GEVP solve is a single Lanczos step; further steps converge faster and give two-sided error bounds.
· “Block Lanczos algorithm for lattice QCD spectroscopy and matrix elements”
Now computed: ttW two-loop amplitudes with full top and W masses
Exact pole cancellation plus finite-field coefficients deliver the NNLO cross-section grid.
· “Two-loop QCD amplitudes for tbar{t}W production at the LHC in the leading-colour approximation”
Small momentum kicks dominate early plasma jet broadening
Kinetic-theory simulations show pre-equilibrium plasmas deflect jets more gently than equilibrium physics predicts.
· “Jet momentum broadening beyond the jet quenching parameter from QCD kinetic theory”
Massive-gluon model reproduces quarkonium masses to 70 MeV
Best-fit masses match charmonium, bottomonium, and B_c states within ~70 MeV, preferring a gluon mass of 300–370 MeV.
· “Nonrelativistic meson masses from the Curci-Ferrari model”
Inside a black hole, entropy grows with time but trails the horizon
A review extends the growing interior volume to charged, rotating, higher-dimensional and f(R) black holes.
Small neutron star radius: 85% of nucleon mass is chiral-invariant
It means under 15% of a proton's mass comes from spontaneous chiral symmetry breaking.
· “Origin of nucleon mass in the light of PSR J0614-3329 with quark-hadron crossover”
Sub-GeV dark matter can make quark stars fit every constraint
Strange quark stars with 100-150 MeV dark matter match pulsar and GW limits; 5 GeV dark matter fails.
Gravity emerges from vacuum energy
A running Newton's constant replaces the Big Bang singularity with a bounce and may resolve the Hubble tension.
A 7-km star may be 70% dark matter
The mass-radius fit sets an astrophysical cap on the dark boson's mass.
· “XTE J1814-338 as a strange star admixed with bosonic dark matter”
Scalar glueball radius pegged at 0.263 fm
First lattice calculation of glueball gravitational form factors puts its mass radius below those of known hadrons.
Autoencoders flag every injected pentaquark in simulated collision data
Two model-agnostic designs pick rare decays with up to 100% purity, enabling new-physics searches and upper limits.
· “AI-powered full-data set search for new physics in ultraperipheral and diffractive events”
Quadrupole forces between quarks and gluons inside spin-1 hadrons
For spin-1 and spin-3/2 hadrons, the quark-gluon force gains quadrupole terms that a single c-bar(t) cannot capture.
· “Quadrupole forces between quark/gluon subsystems inside higher-spin particles”
DESI data fit two log-gravity models that split on gravity's strength
One predicts +3%, the other −3% in gravity's strength, with opposite signs in gravitational-wave damping.
· “Constraints on Logarithmic Model Extensions of Symmetric Teleparallel Gravity”
Analytic two-loop QCD amplitude narrows double-charmonium gap
Fully analytic NNLO prediction matches B-factory data and explains the ln^3 r growth
Automated NLO predictions reach photon-photon collisions in UPCs
A gamma-UPC + MadGraph5_aMC@NLO pipeline puts NLO QCD and EW corrections within reach of non-experts.
A gram of ancient rock could match a 10-kiloton detector
Nuclear-recoil tracks preserved for a billion years could record dark matter, neutrinos, and cosmic rays.
· “Mineral Detection of Neutrinos and Dark Matter 2025 Proceedings”
Charge-balance widths shrink fastest in jet-like pp events
Spherocity-split EPOS-LHC runs tie the narrowing to radial flow, a candidate collective signal in small systems.
One-loop effects give the Higgs a nonzero gravitational size
The slope of its gravitational form factor puts the Higgs's energy radius below its Compton wavelength.
Triple-top baryon Ωttt predicted at 514 GeV
Variational estimate gives 4 GeV binding; decays to three W bosons and three bottom quarks, but production is tiny.
Condensate terms put D-meson mixing prediction at 1.3e-5
The result closes part of a two-order gap between Standard Model and experiment.
A Z3 fusion rule makes neutrino masses natural
Non-invertible symmetry forbids tree-level Majorana mass; one-loop breaking restores it, with a dark matter partner inside.
· “A natural realization of inverse seesaw model in a non-invertible selection rule”
Globular clusters add under 2% to the gamma-ray glow
The galaxy's unresolved cluster population cannot explain the excess diffuse light seen by Fermi-LAT and LHAASO.
· “Contribution of Globular Clusters to Diffuse Gamma-ray Emission from Galactic Plane”
Dilepton v2 from decays flips sign at high pT
A magnetic-field imprint survives in central collisions; annihilation dominates yield but decays carry the distinctive shape.
· “Dilepton Spectra and Even Flow Harmonics in a Magnetized QGP: An Ideal Hydrodynamic Study”
Spinning, charged black holes in motion beam neutrinos forward
A single nearby evaporating black hole could flash a short, aimed neutrino burst that reveals its mass, spin, charge, and speed.
· “Anisotropic Neutrino Emission from Spinning, Moving, and Charged Primordial Black Holes”
Four-color twin top cuts Higgs tuning below its mirror twin
Breaking SU(4) color to SU(3) only in the visible sector also yields half-integer charges and four-quark dark baryons.
Matter-era primordial black holes form 19 times as often
A fifth-power scaling law ties formation to horizon-scale fluctuations and predicts small spins.
· “Primordial Black Hole Formation and Spin in Matter Domination Revisited”
Color sums for n gluons drop to O(17^n) operations
A recursive multiplet-basis method beats trace-basis factorial scaling at moderate multiplicity.
· “All-gluon amplitudes with off-shell recursion in multiplet bases”
Early-universe twists keep WIMPs in reach at the neutrino floor
Freeze-in and early matter domination give viable WIMP targets that next-gen detectors could see.
· “Beyond the Veil: Charting WIMP Territories at the Neutrino Floor”
Quark Pauli blocking may explain di-J/ψ bumps
A quantum-statistics effect would mimic a tetraquark: look for a dip, not a peak, near 6.4 GeV.
· “Di-J/psi structures from the quark Pauli-blocking effect”
Quark model finds narrow tetraquark resonances in two heavy sectors
Predicted masses 8.87–9.36 GeV and 12.13–12.45 GeV come with golden decay channels for experiments.
· “Triply heavy tetraquarks bar{b}cbar{q}c and bar{c}bbar{q}b in a constituent quark model”
