Pentaquark Bound States and Regge Trajectories in QCD via Bethe Salpeter FormalismWe present a comprehensive calculation of pentaquark masses and Regge trajectories within the framework of the Godfrey-Isgur relativized quark model. The pentaquark is treated as a meson-baryon…M. Ghaderi, N. Tazimi, M. Monemzadeh·Jul 31, 2026SaveLearn
Dark Photon Dark Matter from Quantum Fluctuations during Starobinsky InflationWe present a detailed investigation of scenarios in which dark-photon dark matter is produced from quantum fluctuations during inflation. In particular, we focus on inflationary models that…Taiyo Kasamaki, Takeo Moroi·Jul 31, 2026SaveLearn
Dark Photon - ALP Freeze-in: 511 keV and Hα ConstraintsWe investigate a freeze-in scenario of two component dark matter consisting of an axion-like particle (ALP) and a dark photon. The dark sector connects to the Standard Model through a dimension-five…Simran Arora, Nandini Das, Sukanta Dutta et al.·Jul 31, 2026SaveLearn
Roles of a0(980)+ f0(500,980) and a1(1260)+η production mechanisms in decay Ds+ π+ π0 π0 ηIn this work, we theoretically investigate the decay mechanism of Ds+ π+ π0 π0 η based on BESIII data, considering two mechanisms: the production of two dynamically generated resonances,…Jun He·Jul 31, 2026SaveLearn
An Exact Geometric Framework for Flavor Mixing and CP Violation in the Standard ModelFlavor mixing and CP violation in the Standard Model are conventionally parameterized by Euler angles that entangle the physical contributions of the up- and down-type quark sectors, obscuring the…Chilong Lin·Jul 31, 2026SaveLearn
Gravitational waves decay in vacuumWe show that gravitational waves (GW), treated as coherent graviton states, decay into photon pairs in vacuum. The process, even if suppressed by G2, is lifted by two effects combined: the…Diego Blas, José Antonio Oller·Jul 31, 2026SaveLearn
A High-Precision Numerical Framework for Time-Varying Solar Neutrino Flux with Full Earth Matter Oscillation Corrections for Global Underground LaboratoriesSolar neutrinos have been studied for over half a century to test both the Standard Solar Model and the electroweak sector of the Standard Model of particle physics. Contemporary experiments are now…Keyu Han, Isabella Yin, Kaoru Yagi et al.·Jul 31, 2026SaveLearn
Leptogenesis with sub-electroweak-scale reheating temperatureWe study the generation of the baryon asymmetry of the Universe via leptogenesis during the post-inflationary reheating epoch, considering reheating temperatures below the temperature of sphaleron…Basabendu Barman, Arindam Basu, Debasish Borah et al.·Jul 31, 2026SaveLearn
Probing Quantum Numbers and Decay Branching Ratios of Exotic States via Entanglement-Enabled Spin InterferenceUltra-peripheral heavy-ion collisions (UPCs) coherently photo-produce vector mesons through two spatially separated and quantum-mechanically indistinguishable production sites, whose separation far…Di Zhang, Zhangbu Xu, Chi Yang·Jul 31, 2026SaveLearn
Sensitivity of MAGIX@MESA to BSM effects via Bethe-Heitler pair productionWe explore the sensitivity of the upcoming MAGIX experiment at the MESA facility to light Beyond the Standard Model (BSM) mediators in the few to hundred MeV mass range. Utilizing high-intensity…Aleksandr Pustyntsev, Marc Vanderhaeghen·Jul 31, 2026SaveLearn
UV-complete and stable Quintom Dark Energy models in the light of DESI DR2We propose that Quintom dark energy, the simplest framework allowing crossing of the cosmological-constant boundary, admits a natural UV completion in a 5D anisotropic orbifold lattice: the…Fotis Koutroulis·Jul 31, 2026SaveLearn
Inside the Black Box of Big Bang Nucleosynthesis: A Comprehensive Sensitivity Atlas for the Precision EraIn this study we present a comprehensive sensitivity atlas for Big Bang Nucleosynthesis (BBN) in which we quantify the dependence of the primordial abundances of helium-4, deuterium, and lithium-7 as…Anne-Katherine Burns·Jul 31, 2026SaveLearn
Sterile neutrino Dark Matter in the minimal Dirac SeesawWe study sterile neutrino dark matter in a minimal Type-I Dirac seesaw framework where the states responsible for generating Dirac neutrino masses at tree level can be viable dark matter candidates.…J. Adhikary, A. Batra, K. Deka et al.·Jul 31, 2026SaveLearn
Explicit or Implicit? Encoding Physics at the Precision FrontierHigh-performance machine learning tools in particle physics rest on two complementary directions: encoding symmetries explicitly in the architecture, and implicitly learning the structure of the data…Victor Breso-Pla, Kevin Greif, Vinicius Mikuni et al.·Jul 31, 2026SaveLearn
Exploring R2 Leptoquarks and Majorana Neutrinos via same-sign dimuons at the HL-LHCWe study the phenomenology of scalar leptoquark (sLQ) R2 coupled to right-handed neutrinos (RHNs) at the High-Luminosity Large Hadron Collider (HL-LHC), focusing on signatures that…Subham Saha, Arvind Bhaskar, Manimala Mitra·Jul 31, 2026SaveLearn
Resonant electromagnetic leptogenesis with coherent heavy-neutrino evolutionWe study TeV-scale electromagnetic leptogenesis generated by the gauge-invariant neutrino-dipole operators ONB and ONW. The benchmark Wilson coefficients are specified at the…Rin Takada·Jul 31, 2026SaveLearn
Mixed Freeze-In and Freeze-Out Histories and Dark-Sector Decays in a Z4 Two-Scalar ModelWe present a systematic non-equilibrium analysis of a renormalisable Z4 Higgs-portal dark sector with a complex scalar SA and a real scalar SB, including conversion,…J. P. Carvalho-Corrêa, B. A. Couto e Silva, B. L. Sánchez-Vega·Jul 31, 2026SaveLearn
Dark Photon mediated Inelastic Dark Matter in Cosmology, Astrophysics and CollidersWe explore the phenomenology of Dark Photon iDM (AiDM) where the Standard Model (SM) is extended by a dark sector containing an additional U(1)D gauge symmetry under which all SM…Abhishek Roy, Prasenjit Sanyal, Stefano Scopel·Jul 31, 2026SaveLearn
Yukawa-assisted charged-lepton dipoles in resonant electromagnetic leptogenesisWe study the charged-lepton dipole contribution that is linear in the neutrino-dipole coefficients CNB,NW and in the renormalizable neutrino Yukawa matrix Yν. We consider a resonant EMLG…Rin Takada·Jul 31, 2026SaveLearn
Searching for Dark Pions with the MoEDAL-MAPP Detector at the LHCWe investigate the potential for detecting pion-like dark matter within the framework of a Strongly Interacting Massive Particle (SIMP) model using the MoEDAL Apparatus for Penetrating Particles…Shafakat Arifeen, Pierre-Philippe Ouimet, James Pinfold et al.·Jul 31, 2026SaveLearn
Triple Higgs Boson Production with Two Heavy Scalars at the LHC via a Simplified ApproachWe investigate triple Higgs boson production at the CERN LHC, in models containing two new heavy neutral scalar particles. We apply a simplified factorized approach in the narrow-width approximation…Andreas Papaefstathiou, Gilberto Tetlalmatzi-Xolocotzi·Jul 31, 2026SaveLearn
Galactic cold clouds constraints on sub-GeV DM and asteroid-mass PBHsWe show that the ionization of molecular and atomic clouds provides a novel probe of dark matter scenarios producing low-energy e+e- pairs through annihilation, decay, or Hawking evaporation of…Asier Salces Pérez, Pedro de la Torre Luque·Jul 30, 2026SaveLearn
Quantum Tomography of Top Quarks as a Probe of Charge-Parity ViolationLHC measurements now reconstruct all fifteen parameters of the t t two-qubit spin density matrix, which amounts to a full quantum tomography of the pair. We show that this data constrains CP…Eren Erdogan, Kirtimaan A. Mohan, Keping Xie et al.·Jul 30, 2026SaveLearn
A geometric origin for the radiative neutrino portal to secluded dark matterWe study a secluded dark-matter scenario in which the smallness of laboratory signals is linked to the origin of neutrino masses. In the four-dimensional theory, the dark sector contains a hidden…Mattia Di Mauro·Jul 30, 2026SaveLearn
Hadron Structure from the Hierarchy of Quantum Correlations in Deep-Inelastic ScatteringWe show that the hierarchy of quantum correlations produced in deep-inelastic scattering (DIS) can serve as a novel probe of the proton's nonperturbative structure. Specifically, we show that…Henry Bloss, TJ Hobbs, Navin McGinnis·Jul 30, 2026SaveLearn