{"total":27,"items":[{"citing_arxiv_id":"2605.27875","ref_index":19,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"Search for light scalar particles produced in Higgs boson decays in exclusive final states with two muons and two hadrons in proton-proton collisions at $\\sqrt{s}$ = 13 TeV","primary_cat":"hep-ex","submitted_at":"2026-05-27T02:51:39+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":5.0,"formal_verification":"none","one_line_summary":"CMS obtains O(10^{-4}) upper limits on Higgs branching fraction to light scalars (0.4-2 GeV) decaying to muon-hadron pairs with lifetimes up to ~1 mm.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2605.22913","ref_index":44,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"A Precise Measurement of the Fermi-LAT Galactic Center Excess Morphology and Spectrum","primary_cat":"astro-ph.HE","submitted_at":"2026-05-21T18:00:32+00:00","verdict":null,"verdict_confidence":null,"novelty_score":null,"formal_verification":null,"one_line_summary":null,"context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2605.20186","ref_index":13,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"WIMP-like Dark Matter Without Thermalization At Freeze-Out","primary_cat":"hep-ph","submitted_at":"2026-05-19T17:59:56+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":7.0,"formal_verification":"none","one_line_summary":"Hidden-sector dark matter achieves standard thermal relic abundance via early decoupling with temperature-matched freeze-out, enabling WIMP-like cross sections without late-time thermalization.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2605.13696","ref_index":16,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"Dark photon searches in the photon channel","primary_cat":"hep-ph","submitted_at":"2026-05-13T15:48:53+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":5.0,"formal_verification":"none","one_line_summary":"GEANT4 simulations indicate that photon spectral shape differences from pion decays in a tungsten foil setup could probe new dark photon parameter space with feasible proton beam runs.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2605.13336","ref_index":5,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"Probing Boosted Light Scalars in the Type-I 2HDM","primary_cat":"hep-ph","submitted_at":"2026-05-13T10:53:34+00:00","verdict":"CONDITIONAL","verdict_confidence":"LOW","novelty_score":7.0,"formal_verification":"none","one_line_summary":"Boosted light scalars decaying to b b-bar in Type-I 2HDM can be tagged as double-b fat-jets and used with SM gauge bosons to probe heavy scalars up to 540 GeV at the HL-LHC for masses 30-70 GeV.","context_count":1,"top_context_role":"background","top_context_polarity":"background","context_text":"[2]CMScollaboration,Observation of a New Boson at a Mass of 125 GeV with the CMS Experiment at the LHC,Phys. Lett. B716(2012) 30 [1207.7235]. [3]ATLAScollaboration,A detailed map of Higgs boson interactions by the ATLAS experiment ten years after the discovery,Nature607(2022) 52 [2207.00092]. [4]CMScollaboration,A portrait of the Higgs boson by the CMS experiment ten years after the discovery.,Nature607(2022) 60 [2207.00043]. [5] A. Dedes, C. Hugonie, S. Moretti and K. Tamvakis,Phenomenology of a new minimal supersymmetric extension of the standard model,Phys. Rev. D63(2001) 055009 [hep-ph/0009125]. [6] B. A. Dobrescu and K. T. Matchev,Light axion within the next-to-minimal supersymmetric standard model,JHEP09(2000) 031 [hep-ph/0008192]. [7] U. Ellwanger, J. F. Gunion, C. Hugonie and S."},{"citing_arxiv_id":"2605.11630","ref_index":21,"ref_count":1,"confidence":0.9,"is_internal_anchor":false,"paper_title":"Long-lived sterile neutrinos from axionlike particles at the Super Tau-Charm Facility","primary_cat":"hep-ph","submitted_at":"2026-05-12T06:55:48+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":4.0,"formal_verification":"none","one_line_summary":"STCF can reach |V_eN|^2 values one to two orders of magnitude below current bounds for heavy neutral leptons via displaced-vertex searches from ALP decays in D-meson production.","context_count":1,"top_context_role":"background","top_context_polarity":"background","context_text":"Goodsell, and A. Ringwald, JHEP10, 146 (2012), arXiv:1206.0819 [hep-th]. [18] D. O'Connell, M. J. Ramsey-Musolf, and M. B. Wise, Phys. Rev. D75, 037701 (2007), arXiv:hep-ph/0611014. [19] J. D. Wells, , 283 (2008), arXiv:0803.1243 [hep-ph]. [20] C. Bird, P. Jackson, R. V. Kowalewski, and M. Pospelov, Phys. 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JETP56, 502 (1982)."},{"citing_arxiv_id":"2605.11321","ref_index":29,"ref_count":1,"confidence":0.9,"is_internal_anchor":false,"paper_title":"MeVPrtl: An Event Generator for Dark Sector Particles in the Short-Baseline Neutrino Program","primary_cat":"hep-ex","submitted_at":"2026-05-11T23:14:06+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":6.0,"formal_verification":"none","one_line_summary":"MeVPrtl is a new event generator that implements Higgs portal, heavy neutral lepton, and heavy QCD axion models for use in short-baseline neutrino experiments.","context_count":1,"top_context_role":"background","top_context_polarity":"background","context_text":"Liketheotherstagesof MeVPrtl,theclassalsoreturnsthelargestpossible 𝑤decay the class would assign to an event. 3.5. Event Weight Validation MeVPrtl's determination of event weights has been validated in the context of HPS generation at ICARUS by an independent approach described by the following formalism. For an overview of this model, see section 4.1 below, as well as Ref. [29]. Foragivenevent,thedifferentialprobabilityofHPSdecayintermsofitsdecaypositionrelativetotheparentkaon is given by 𝑑𝑃 = 1 4𝜋 1 𝛾𝑣𝜏 𝑒−𝑟∕𝛾𝑣𝜏 𝑑𝑟𝑑 cos 𝜃′𝑑𝜙′, (8) where 𝑟 is now the length of the HPS trajectory,𝑣 is the HPS speed, and𝜏 is the HPS lifetime. In terms of ICARUS detector coordinates𝑥𝑑, 𝑦𝑑, 𝑧𝑑 this becomes 𝑑𝑃 = 1 4𝜋 1 𝛾𝑣𝜏 𝑒−𝑟(𝑥𝑑 ,𝑦𝑑 ,𝑧𝑑 )∕𝛾𝑣𝜏 ||||"},{"citing_arxiv_id":"2605.09686","ref_index":41,"ref_count":1,"confidence":0.9,"is_internal_anchor":false,"paper_title":"Asymmetric Reheating of Dark QED","primary_cat":"hep-ph","submitted_at":"2026-05-10T18:16:28+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":6.0,"formal_verification":"none","one_line_summary":"Asymmetric reheating in Dark QED produces dark matter via a new channel where DM particles annihilate while still being created by inflaton decay, with the hidden-to-visible temperature ratio tied to the square root of the Yukawa coupling ratio.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2605.03427","ref_index":1,"ref_count":1,"confidence":0.9,"is_internal_anchor":false,"paper_title":"Search for Long-Lived Dark Photons from Dark Radiation at the LHC","primary_cat":"hep-ph","submitted_at":"2026-05-05T07:03:21+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":7.0,"formal_verification":"none","one_line_summary":"Dark radiation from dark matter produced in Z decays generates long-lived dark photons that dominate over meson decays and bremsstrahlung for small kinetic mixing and masses above the GeV scale, allowing FASER2, FACET, and MATHUSLA to probe relic-abundance-consistent regions beyond conventional dark","context_count":1,"top_context_role":"background","top_context_polarity":"background","context_text":"of signals in direct, indirect, and collider searches indicates that the DM particle may interact extremely weakly with the Standard Model (SM) sector, for example through loop effects or feeble portal interactions. A minimal and well-motivated realization consists of a Dirac fermion DM can- didateχresiding in a dark sector charged under a brokenU(1)gauge symmetry, which communicates with the SM via kinetic mixing [1]. The corresponding mas- sive gauge boson, the dark photonA′, mediates the interactions between the two sectors. This framework accommodates the observed relic abundance over a wide range of parameter space. It should be noted that, formA′ < m χ, efficient an- nihilation¯χχ→A ′A′ typically drives the DM abundance below the observed value unless the dark gauge coupling is sufficiently suppressed."},{"citing_arxiv_id":"2604.28133","ref_index":5,"ref_count":1,"confidence":0.9,"is_internal_anchor":false,"paper_title":"The DAMSA Experiment","primary_cat":"hep-ex","submitted_at":"2026-04-30T17:17:55+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":6.0,"formal_verification":"none","one_line_summary":"DAMSA proposes an ultra-short baseline accelerator experiment to detect short-lived dark sector messengers by overcoming the sensitivity ceiling of longer-baseline beam dump experiments through a compact detector design.","context_count":1,"top_context_role":"background","top_context_polarity":"background","context_text":"technical design report, V olume I: Introduction to DUNE,JINST15(2020) T08008 [2002.02967]. [2] G. Bertone, D. Hooper and J. Silk, Particle dark matter: Evidence, candidates and constraints, Phys. Rept.405(2005) 279 [hep-ph/0404175]. [3] B. Holdom, Two U(1)'s and Epsilon Charge Shifts,Phys. Lett. B166(1986) 196. [4] B. Patt and F. Wilczek, Higgs-field portal into hidden sectors,hep-ph/0605188. [5] M. Pospelov, A. Ritz and M. B. V oloshin,Secluded WIMP Dark Matter, Phys. Lett. B662(2008) 53 [0711.4866]. [6] M. Pospelov and A. Ritz, Astrophysical Signatures of Secluded Dark Matter, Phys. Lett. B671 (2009) 391 [0810.1502]. [7] M. Pospelov, Secluded U(1) below the weak scale, Phys. Rev. D80(2009) 095002 [0811.1030]. [8] A. Falkowski, J. Juknevich and J."},{"citing_arxiv_id":"2604.25090","ref_index":40,"ref_count":1,"confidence":0.9,"is_internal_anchor":false,"paper_title":"Can LLP detectors probe the reheating temperature? A case study of vector dark matter","primary_cat":"hep-ph","submitted_at":"2026-04-28T00:50:19+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":5.0,"formal_verification":"none","one_line_summary":"In a vector dark matter extension of the Higgs portal, far detectors at colliders can probe otherwise inaccessible parameter space and set novel bounds on the reheating temperature.","context_count":1,"top_context_role":"background","top_context_polarity":"background","context_text":"FOREHUNT and a transverse detector DELIGHT,\"Phys. Rev. D110no. 1, (2024) 015036, arXiv:2306.11803 [hep-ph]. [38] D. O'Connell, M. J. Ramsey-Musolf, and M. B. Wise, \"Minimal Extension of the Standard Model Scalar Sector,\"Phys. Rev. D75(2007) 037701,arXiv:hep-ph/0611014. [39] J. D. Wells, \"How to Find a Hidden World at the Large Hadron Collider,\"arXiv:0803.1243 [hep-ph]. [40] C. Bird, P. Jackson, R. V. Kowalewski, and M. Pospelov, \"Search for dark matter in b ->s transitions with missing energy,\"Phys. Rev. Lett.93(2004) 201803, arXiv:hep-ph/0401195. [41] M. Pospelov, A. Ritz, and M. B. Voloshin, \"Secluded WIMP Dark Matter,\"Phys. Lett. B 662(2008) 53-61,arXiv:0711.4866 [hep-ph]. [42] G. Krnjaic, \"Probing Light Thermal Dark-Matter With a Higgs Portal Mediator,\"Phys."},{"citing_arxiv_id":"2604.24849","ref_index":82,"ref_count":1,"confidence":0.9,"is_internal_anchor":false,"paper_title":"Accidental Peccei-Quinn Symmetry from Chiral Gauge Symmetry and Mirror QCD","primary_cat":"hep-ph","submitted_at":"2026-04-27T18:00:02+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":6.0,"formal_verification":"none","one_line_summary":"A chiral U(1) gauge symmetry generates an accidental Peccei-Quinn symmetry broken by mirror QCD, solving the strong CP problem without a light axion while supplying WIMP dark matter, stochastic gravitational waves, and LHC-testable colored pNGBs.","context_count":1,"top_context_role":"background","top_context_polarity":"background","context_text":"Since theρ-meson like states have masses∼3Λ ′ >2m O, the total cross section is dominated by the former channel, although the latter can create a bump in the invariant-mass distribution of pairs of octet NGBs [81]. OT dominantly decays intoT ggorT gA D. SinceTis stable, the signal is jets plus missing energy. The production cross section ofO T [57] happens to be similar to that of eight squarks [82], and the constraint onO T can be derived by reinterpreting squark searches that put a constraint on the mass of eight degenerate squarks [83, 84]. The constraint depends on the mass spectrum. Fore D < g 3, the mass splitting betweenO T andTis large and the constraint can be as strong asm OT >1.8 TeV. Ife D > g 3, the mass splitting is small and the constraint can be relaxed"},{"citing_arxiv_id":"2604.18674","ref_index":70,"ref_count":1,"confidence":0.9,"is_internal_anchor":false,"paper_title":"Hunting Sterile Neutrino Dark Matter in the MeV Gap","primary_cat":"hep-ph","submitted_at":"2026-04-20T18:00:00+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":5.0,"formal_verification":"none","one_line_summary":"Future MeV telescopes are projected to improve existing limits on sterile neutrino dark matter decay rates by several orders of magnitude.","context_count":1,"top_context_role":"background","top_context_polarity":"background","context_text":"Journal of High Energy Astrophysics19(2018) 1-106. [68]e-ASTROGAMcollaboration, M. Tavani et al., Science with e-ASTROGAM: A space mission for MeV-GeV gamma-ray astrophysics,JHEAp19(2018) 1-106, [1711.01265]. [69] T. Aramaki, P. O. H. Adrian, G. Karagiorgi and H. Odaka,Dual MeV gamma-ray and dark matter observatory - Project,Astroparticle Physics114(2020) 107-114. [70] T. Aramaki, P. Hansson Adrian, G. Karagiorgi and H. Odaka,Dual MeV Gamma-Ray and Dark Matter Observatory - GRAMS Project,Astropart. Phys.114 (2020) 107-114, [1901.03430]. [71] S. D. H. et al.,A pair production telescope for medium-energy gamma-ray polarimetry,Astroparticle Physics59(2014) 18-28. [72] X. Wu, M. Su, A. Bravar, J. Chang, Y. Fan, M. Pohl"},{"citing_arxiv_id":"2604.17726","ref_index":32,"ref_count":1,"confidence":0.9,"is_internal_anchor":false,"paper_title":"Searching for dark photons in $J/\\psi$ decays","primary_cat":"hep-ph","submitted_at":"2026-04-20T02:21:28+00:00","verdict":null,"verdict_confidence":null,"novelty_score":null,"formal_verification":null,"one_line_summary":null,"context_count":1,"top_context_role":"background","top_context_polarity":"background","context_text":"Fayet, \"Light spin 1/2 or spin 0 dark matter particles,\" Phys. Rev. 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Holzmann, \"Constraints on the"},{"citing_arxiv_id":"2604.15240","ref_index":17,"ref_count":1,"confidence":0.9,"is_internal_anchor":false,"paper_title":"Boson star-black hole binaries: initial data and head-on collisions","primary_cat":"gr-qc","submitted_at":"2026-04-16T17:15:14+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":6.0,"formal_verification":"none","one_line_summary":"A one-body conformal-factor correction stabilizes boson star-black hole initial data, enabling gravitational-wave analysis that shows higher multipoles can discriminate mixed mergers from pure black-hole binaries.","context_count":1,"top_context_role":"background","top_context_polarity":"background","context_text":"[15] Leszek Roszkowski, Enrico Maria Sessolo, and Sebas- tian Trojanowski, \"WIMP dark matter candidates and searches-current status and future prospects,\" Rept. Prog. Phys.81, 066201 (2018), arXiv:1707.06277 [hep- ph]. 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Abazajianet al., \"Light Sterile Neutrinos: A"},{"citing_arxiv_id":"2604.15006","ref_index":7,"ref_count":1,"confidence":0.9,"is_internal_anchor":false,"paper_title":"Cosmology of Inelastic Self-Interacting Dark Matter: Linear Evolution and Observational Constraints","primary_cat":"astro-ph.CO","submitted_at":"2026-04-16T13:33:16+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":5.0,"formal_verification":"none","one_line_summary":"Inelastic self-interacting dark matter with small mass splitting produces a cutoff in the matter power spectrum at k > 1 h Mpc^{-1} whose location depends on cross-section normalization, velocity dependence, dark matter mass and mass splitting, yielding non-monotonic exclusion regions from Lyman-α森林","context_count":1,"top_context_role":"background","top_context_polarity":"background","context_text":"[4]XENONcollaboration,First Dark Matter Search with Nuclear Recoils from the XENONnT Experiment,Phys. Rev. Lett.131(2023) 041003 [2303.14729]. [5]PandaXcollaboration,Dark Matter Search Results from 1.54 Tonne·Year Exposure of PandaX-4T,Phys. Rev. Lett.134(2025) 011805 [2408.00664]. [6]DarkSide-50collaboration,Search for low-mass dark matter WIMPs with 12 ton-day exposure of DarkSide-50,Phys. Rev. D107(2023) 063001 [2207.11966]. [7]CDEXcollaboration,Limits on Light Weakly Interacting Massive Particles from the First 102.8 kg×day Data of the CDEX-10 Experiment,Phys. Rev. Lett.120(2018) 241301 [1802.09016]. [8] A. Boveia and C. Doglioni,Dark Matter Searches at Colliders,Ann. Rev. Nucl. Part. Sci.68 (2018) 429 [1810.12238]. [9] F. Kahlhoefer,Review of LHC Dark Matter Searches,Int."},{"citing_arxiv_id":"2602.20237","ref_index":4,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"Linking Leptogenesis and Asymmetric Dark Matter: A Testable Framework for Neutrino Mass and the Matter-Antimatter Asymmetry","primary_cat":"hep-ph","submitted_at":"2026-02-23T19:00:00+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":6.0,"formal_verification":"none","one_line_summary":"A leptogenesis framework generates both baryon asymmetry and asymmetric dark matter via heavy Majorana neutrino decays, enabling a TeV-scale seesaw with hierarchical couplings and testable spin-independent DM cross sections above 10 GeV.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2601.15856","ref_index":31,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"WIMP Dark Matter from a Natural Discrete Gauge Symmetry in the Standard Model","primary_cat":"hep-ph","submitted_at":"2026-01-22T11:02:36+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":6.0,"formal_verification":"none","one_line_summary":"A Z4 × Z3 discrete gauge symmetry in the SM requires three new Majorana fermions whose lightest member is stable DM with mass from a singlet scalar VEV near the electroweak scale, enabling WIMP freeze-out via scalar-mediated annihilation.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2601.10597","ref_index":10,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"Search for sub-GeV dark particles in $\\eta\\to\\pi^0+\\rm{invisible}$ decay","primary_cat":"hep-ex","submitted_at":"2026-01-15T17:06:36+00:00","verdict":"ACCEPT","verdict_confidence":"LOW","novelty_score":7.0,"formal_verification":"none","one_line_summary":"No signal found in first search for eta to pi0 plus invisible dark scalar decay, setting branching fraction limits of (1.8-5.5)x10^-5 at 90% CL and improving DM-nucleon cross section bounds by ~5 orders of magnitude.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2511.21808","ref_index":44,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"A Comprehensive Study of WIMP Models Explaining the Fermi-LAT Galactic Center Excess","primary_cat":"hep-ph","submitted_at":"2025-11-26T19:00:00+00:00","verdict":"CONDITIONAL","verdict_confidence":"LOW","novelty_score":5.0,"formal_verification":"none","one_line_summary":"WIMP models for the Galactic Center Excess survive only in finely tuned resonant funnels with portal couplings around 10^-4, with leptophilic vectors and pseudoscalar portals remaining most viable after current bounds.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2510.26260","ref_index":127,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"Letter of Intent: The Forward Physics Facility","primary_cat":"hep-ex","submitted_at":"2025-10-30T08:40:59+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":5.0,"formal_verification":"none","one_line_summary":"Proposes construction of the Forward Physics Facility at the HL-LHC with four complementary detectors to exploit forward neutrinos and new-particle fluxes for neutrino, QCD, astroparticle, and dark-matter measurements.","context_count":1,"top_context_role":"background","top_context_polarity":"background","context_text":"electron neutrinos in FASERν2. The baseline predic- tion, shown as gray solid line, uses SIBYLL 2.3d [120] to model light hadron production andk T -factorisation approach discussed in Ref. [128] for charm production. The coloured lines illustrate an intrinsic charm com- ponent in the proton, following the BHPS model [109] implemented in the CT14 PDF [131] as estimated in Ref. [127] (blue dashed) and gluon saturation at low- x[132], as estimated in Ref. [128] (green dash-dotted). Intrinsic Charm:Due to their sensitivity to high-xPDFs, collider neutrino flux mea- surements may also shed light on intrinsic charm [133]. According to both in the orig- inal BHPS model [109], as well as the recent PDF fits performed by the NNPDF [110] and"},{"citing_arxiv_id":"2509.08043","ref_index":41,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"Testing Viability of Benchmark Dark Matter Models for the Galactic Center Excess","primary_cat":"hep-ph","submitted_at":"2025-09-09T18:00:01+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":4.0,"formal_verification":"none","one_line_summary":"Updated constraints on two simplified dark matter models for the Galactic Center Excess leave unconstrained parameter space after applying recent multi-experiment data.","context_count":1,"top_context_role":"background","top_context_polarity":"background","context_text":"UV-complete, and were found to meet all requirements when they were first proposed as explanations for the GCE. One major class is the secluded dark sector, where the dark sector is coupled to the SM sector through a metastable mediator with a lower mass than the DM candidate [32, 34, 38]. As a result, secluded models can naturally evade both direct detection and collider production with an extremely small cross section [41], by reducing the coupling of the mediator to the SM without reducing the annihilation rate of the DM into mediators. One such minimal example on which we focus in this paper isthe secluded hypercharge model, where a dark gauge boson of a U(1) D symmetry kinetically mixes with the gauge boson of the SM U(1) Y symmetry [32]. This model is the simplest UV-complete"},{"citing_arxiv_id":"2507.11376","ref_index":1,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"GeV-scale thermal dark matter from dark photons: tightly constrained, yet allowed","primary_cat":"hep-ph","submitted_at":"2025-07-15T14:48:22+00:00","verdict":"CONDITIONAL","verdict_confidence":"MODERATE","novelty_score":5.0,"formal_verification":"none","one_line_summary":"In a dark-photon-mediated Dirac fermionic DM model, only narrow resonant regions with small dark-sector coupling allow the candidate to saturate the full relic density while evading current direct and indirect detection bounds.","context_count":1,"top_context_role":"background","top_context_polarity":"background","context_text":"ing from the European Union's Horizon Europe research and innovation programme under the Marie Skłodowska-Curie Staff Exchange grant agreement No 101086085 - ASYMMETRY. PF would like to thank the Massachusetts Institute of Technology (MIT) for hospitality during the completion of this work. Feynman diagrams were drawn usingTikZ-Feynman [144]. References [1] M. Pospelov, A. Ritz and M. B. Voloshin,Secluded WIMP Dark Matter, Phys. Lett. B662 (2008) 53-61, [0711.4866]. [2] M. Pospelov, A. Ritz and M. B. Voloshin,Bosonic super-WIMPs as keV-scale dark matter, Phys. Rev. D78 (2008) 115012, [0807.3279]. [3] N. Arkani-Hamed, D. P. Finkbeiner, T. R. Slatyer and N. Weiner,A Theory of Dark Matter, Phys. Rev. D79 (2009) 015014, [0810."},{"citing_arxiv_id":"2501.08052","ref_index":16,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"Search for the production of Higgs-portal scalar bosons in the NuMI beam using the MicroBooNE detector","primary_cat":"hep-ex","submitted_at":"2025-01-14T12:01:03+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":5.0,"formal_verification":"none","one_line_summary":"MicroBooNE sets the strongest limits to date on the Higgs-portal scalar mixing angle θ below ~3×10^{-4} for masses 110-155 MeV using kaon decays in the NuMI beam and 2.01×10^{21} POT exposure.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"1907.08010","ref_index":212,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"Cosmological searches for the neutrino mass scale and mass ordering","primary_cat":"astro-ph.CO","submitted_at":"2019-07-18T12:03:32+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":4.0,"formal_verification":"none","one_line_summary":"Thesis summarizing an upper limit of 0.12 eV on the neutrino mass sum, bias calibration via CMB lensing cross-correlations, and tighter limits plus stronger normal-ordering preference in non-phantom dynamical dark energy models.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"1907.04324","ref_index":141,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"Dark Matter Energy Deposition and Production from the Table-Top to the Cosmos","primary_cat":"hep-ph","submitted_at":"2019-07-09T15:47:40+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":5.0,"formal_verification":"none","one_line_summary":"The thesis presents a new 3-to-2 freezeout mechanism, bound-state effects on searches, a new axion interferometric search, reionization assessments, 21-cm constraints, and the DarkHistory code for ionization and thermal histories.","context_count":1,"top_context_role":"background","top_context_polarity":"background","context_text":"matter annihilation/decay. 39 40 Chapter 2 Enabling Forbidden Dark Matter 2.1 Introduction As we discussed in Chapter 1, the observed relic abundance of dark matter (DM) may provide a clue to its non-gravitational interactions. In the conventional Lee-Weinberg scenario, Many variations on the standard thermal freezeout scenario have recently been considered (e.g. [43, 44, 50, 141-162]); in this article, we point out that even for simple and weakly-coupled dark sectors,3 → 2 annihilations - as illustrated in Fig. 2-1 - can play a critical role. For weakly-coupled DM,3 → 2 processes are usually considered to be subdom- inant to their 2 → 2 counterparts at the time of freezeout, but if the latter are kinematically suppressed while3 → 2 is unsuppressed, the situation is more complex."},{"citing_arxiv_id":"1907.01944","ref_index":86,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"Dark Horse, Dark Matter: Revisiting the SO(16)x SO(16)' Nonsupersymmetric Model in the LHC and Dark Energy Era","primary_cat":"hep-th","submitted_at":"2019-07-03T13:47:55+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":2.0,"formal_verification":"none","one_line_summary":"Reexamination of the SO(16)xSO(16)' nonsupersymmetric model for implications on dark energy, vacuum stabilization, dark matter candidates, and gauge-Higgs unification in light of LHC and dark energy data.","context_count":1,"top_context_role":"background","top_context_polarity":"background","context_text":"as they are charged under both groups and can play an import role in the phenomeno- logical consequences of the theory including dark matter production in cosmology and in accelerator experiments. Hidden sector gauge groups smaller than SO(16)′ may be preferred when the Hidden sector contains dark matter candidates in the form of self interacting hidden glueballs [77][78][79] [80][81][82] [83][84][85] [86][87][88] [89][91][92]. This follows from renormaliza- tion group analysis which relates the glueball mass scale to the reheating temperature. Compactifications which break the hidden SO(16)′ can in principle realize this scenario in non-supersymmetric model building using non-supersymmetric orbifolds. Also with non-supersymmetric orbifolds one can see the Higgs field emerge as a extradimensional"}],"limit":50,"offset":0}