Nested-GPT for variable-multiplicity parton showers: A case study in the resummation of non-global logarithmsWe introduce Nested-GPT, a hierarchical autoregressive Transformer architecture for simulating the variable-multiplicity parton-shower histories. As a controlled benchmark, we study the…Wanchen Li, Ding Yu Shao, Hao-Zhe Shi et al.·May 20, 2026SaveLearn
On the predictivity of axion dark matter in the presence of Peccei-Quinn breakingIt is shown that the post-inflationary quantum chromodynamics (QCD) axion need not lead to a unique one-parameter prediction for the dark matter abundance whenever small explicit Peccei-Quinn…Michael Zantedeschi·May 20, 2026SaveLearn
Dark matter in classically conformal theories: WIMP and supercoolingBeyond solving the hierarchy problem, classically conformal (CC) theories naturally accommodate dark matter (DM). In this work, we explore the CC SU(2)X gauge theory with a triplet dark scalar,…Ke-Pan Xie, Cheng-Hao Zhan·May 20, 2026SaveLearn
Temperature-Dependent CPT Violation: Constraints from Big Bang NucleosynthesisIn this study, we explore temperature-dependent CPT violation during Big Bang Nucleosynthesis (BBN) through electron-positron mass asymmetries parametrized by b0(T) = αT2. The T2 scaling…Gabriela Barenboim, Anne-Katherine Burns·May 20, 2026SaveLearn
Intrinsic Properties of Large CP Violation in the Complex Two-Higgs-Doublet ModelWe investigate the parameter space supporting large CP violation (CPV) in the complex two-Higgs-doublet model with softly broken Z2 symmetry, where the 125~GeV Higgs boson is identified as the…Soojin Lee, A. Hammad, Dongjoo Kim et al.·May 20, 2026SaveLearn
Data-Driven Predictions for Dark Photon and Millicharged Particle ProductionAccurate signal predictions are essential for interpreting and optimizing fixed-target searches for new physics. Even in minimal models such as the dark photon (A') or millicharged particles…Elizabeth Allison, Nikita Blinov·May 20, 2026SaveLearn
Event shapes and Inclusive Hadron Spectra at FCC-ee energiesWe analyze hadronic final states of e+e- annihilation through event shape observables, Thrust and C-parameter, and inclusive hadron spectra at the planned center-of-mass (c.m.) energies of the…Philip Mathew, Ritu Aggarwal, Manjit Kaur·May 20, 2026SaveLearn
Self-Interaction of Super-Resonant Dark MatterThe ΛCDM model, while successful on large cosmological scales, faces challenges on small scales. A promising solution posits that dark matter (DM) exhibits strong self-interaction, enhanced through…Shao-Song Tang, Murat Abdughani·May 20, 2026SaveLearn
Study of the scalar and pseudoscalar meson mass spectrum above the QCD chiral phase transition, using an effective Lagrangian approachIn this work, expanding on previous analyses, we employ an effective Lagrangian approach to investigate the mass spectrum of scalar and pseudoscalar mesons at finite temperature, above the…Giulio Cianti, Enrico Meggiolaro·May 20, 2026SaveLearn
Novel probes for electron-muon flavor violation from exotic Higgs decaysIn this paper, we propose two novel signatures of Higgs decays to search for electron-muon flavor violation. These signatures arise from the presence of a light pseudoscalar into which the 125-GeV…P. Uttayarat, J. Julio, R. Primulando·May 20, 2026SaveLearn
Slow Quanta Bound States and a Possible Link to Dark MatterWe study the possibility of elementary energy quanta with vacuum propagation speed w < c, capable of interacting with each other to form massive bound states. The slow matter thus formed is shown to…Bruce Denby·May 20, 2026SaveLearn
Dihadron azimuthal asymmetry and light-quark dipole moments at the Electron-Ion ColliderWe propose a novel method to probe light-quark dipole moments by examining the azimuthal asymmetries between a collinear pair of hadrons in semi-inclusive deep inelastic lepton scattering off an…Xin-Kai Wen, Bin Yan, Zhite Yu et al.·May 20, 2026SaveLearn
The electroweak magnetic monopole in the presence of KSVZ axionThe Witten effect implies the dynamics of axion and magnetic monopole. The Cho-Maison monopole is a realistic electroweak monopole arisen in the Weinberg-Salam theory. This monopole of TeV scale mass…Tong Li, Rui-Jia Zhang·May 20, 2026SaveLearn
Indirect Parametric Resonance of the Electromagnetic Field Driven by an Oscillating SU(2) Dark Matter CondensateWe study a local patch of an axion-like dark sector in Minkowski spacetime, containing an initially homogeneous and isotropic non-Abelian SU(2) condensate, and a real pseudoscalar field χ,…Tatsuya Daniel, Vahid Kamali, Robert Brandenberger·May 19, 2026SaveLearn
Model-Building Implications from Light Magnetic Monopoles: A Case Study of Flavour DeconstructionWe highlight a generic connection between extensions of the Standard Model featuring low-scale semi-simple embeddings of U(1) EM and the phenomenology of light magnetic monopoles in the…Marko Pesut, Davide Racco, Yunlong Zhao·May 19, 2026SaveLearn
WIMP-like Dark Matter Without Thermalization At Freeze-OutIn the standard thermal relic scenario, dark matter remains in chemical equilibrium with the Standard Model radiation bath until freeze-out occurs at T mX/20, where mX is the dark matter…Dan Hooper, Gordan Krnjaic, Gabriele Montefalcone·May 19, 2026SaveLearn
Dark Matter Interpretation of the Super-Kamiokande Antineutrino Excess and Predictions for JUNOSuper-Kamiokande has reported a small excess of electron antineutrino events in the 20 MeV energy range, in the search for the diffuse supernova neutrino background. We interpret this signal as a…Alessandro Granelli, Silvia Pascoli, Salvador Rosauro-Alcaraz·May 19, 2026SaveLearn
Non-relativistic Cosmological Collider SignalsWe investigate a non-relativistic realization of the boostless cosmological collider in a scenario where inflationary interactions are mediated by a massive tilted-ghost spectator field. Unlike…Matheus C. Ferreira, Felipe T. Falciano·May 19, 2026SaveLearn
Renormalisation and invariants for two U(1)sWe revisit the renormalisation of models with two U(1) gauge symmetries, in a formulation with non-canonical gauge kinetic terms which is covariant under field reparametrisations among the two gauge…Sacha Davidson, Martin Gorbahn·May 19, 2026SaveLearn
Lindblad-driven quarkonium production in heavy-ion collisionsWe study the production of the conventional quarkonium states in ultrarelativistic heavy-ion collisions using an open quantum system framework based on the Lindblad equation. Starting from the…Néstor Armesto, Miguel Ángel Escobedo, Elena G. Ferreiro et al.·May 19, 2026SaveLearn
Lee-Yang zeros and edge singularity in a mean-field approachThe analytic structure of the partition function in finite-volume systems is investigated at complex chemical potentials in a minimal mean-field effective model of QCD with finite-size effects…Tatsuya Wada, Győző Kovács, Masakiyo Kitazawa et al.·May 19, 2026SaveLearn
Probing the Rare Four-Bottom Higgs Decay H b b b b at the HL-LHC and ILCWe propose the rare SM Higgs decay H b b b b as a probe of the structure of Higgs interactions with bottom quarks and gauge bosons, and as a baseline for searches for new physics…Eduard Boos, Vyacheslav Bunichev, Guliya Nurbakova et al.·May 19, 2026SaveLearn
The stability of color-flavor-locked quark matter and massive CFL quark starsOwing to the emergence of attractive interactions between quarks, color superconductivity is expected to occur, with the color-flavor-locked (CFL) phase favored at high densities. This work…Wen-Li Yuan, Bikai Gao·May 19, 2026SaveLearn
Controlling Quantum discord and steering in Electron-Positron Annihilation Using Polarized BeamsQuantum discord and steering offer crucial insights into the non-classical nature of hyperon-antihyperon pairs, a massive two-qubit system produced in high energy electron-positron annihilation. This…Hong-Wei Zhang, Xu Cao, Tai-Fu Feng·May 19, 2026SaveLearn
A comparative study of Tcc versus X(3872) production in pp collisions at s= 7 TeVThe production of exotic hadrons Tcc and X(3872) in pp collisions at s=7 TeV is compared using the parton and hadron cascade model PACIAE together with the dynamically constrained…Hongge Xu, Tianqi Luo, Yi-Long Xie et al.·May 19, 2026SaveLearn