Finite-duration non-slow-roll effects in inflationary production of ultralight vector dark matterInflationary production of ultralight vector dark matter can be amplified by a brief non-slow-roll phase, yet instantaneous mass transitions generate ultraviolet ringing and leave finite-time…Imtiaz Khan, Niamat Ullah, Chengxun Yuan et al.·Sep 2, 2026SaveLearn
Radiative and Dalitz decays of Υ(1S) in the light of the ATOMKI X17 anomalyWe study the radiative decay Υ(1S) ηbγ and the Dalitz decay Υ(1S) ηb e+ e- within the framework of the Covariant Confined Quark Model. We provide theoretical predictions for the…Chien-Thang Tran, Mikhail A. Ivanov·Sep 2, 2026SaveLearn
Inelastic Dark Photon Dark Matter for the LUX-ZEPLIN High-Recoil Event and the Galactic Halo Gamma-Ray ExcessWe show that a dark-photon dark matter framework can simultaneously account for two recently reported anomalies: the halo-like Galactic gamma-ray excess identified by Totani in 15 years of Fermi-LAT…Kimiko Yamashita·Sep 2, 2026SaveLearn
A Peccei-Quinn Origin for Inelastic Electroweak Dark Matter after LUX-ZEPLINThe LUX-ZEPLIN (LZ) experiment has reported one nuclear recoil event reconstructed at ER=24823 stat23 sys\,keV in a search extending to ER270\,keV. We…Luca Visinelli·Sep 2, 2026SaveLearn
MadSpin2: automated spin-entangled decays of heavy resonances via the spin-density matrix formalismThe simulation of processes that contain multiple particles from the decay of unstable resonances becomes computationally challenging both at leading order and beyond. This paper presents MADSPIN2, a…Spyros Argyropoulos, Valentin Durupt, Olivier Mattelaer·Sep 2, 2026SaveLearn
The H*H*V charge couplings from light-cone sum rulesWe present an updated and rigorous determination of the strong charge couplings gH*H*V (with H ∈ \D, B\ and V ∈ \ρ, ω, K*, ϕ\) using the framework of light-cone sum rules (LCSR).…Chao Wang·Sep 2, 2026SaveLearn
Strong Constraints on Higgsino Dark Matter from Solar CaptureHiggsino dark matter remains one of the most convincing dark matter candidates. It can exist in a ``quasi-Dirac" regime, when the splitting between two Majorana components is on the order of…Maxim Pospelov, Harikrishnan Ramani·Sep 2, 2026SaveLearn
Next-to-leading order QCD corrections to fully charm tetraquark hadronic decayWe compute the next-to-leading order (NLO) QCD corrections to the light hadron decays of fully charm tetraquarks within the nonrelativistic QCD (NRQCD) factorization framework. The short-distance…Yefan Wang, Fengxiang Zhao, Ruilin Zhu·Sep 2, 2026SaveLearn
Next-to-Leading-Order Multi-Jet Merging of Higgs Boson Production via Vector Boson Fusion in the Presence of Anomalous CouplingsWe present the results of a detailed simulation study of Higgs boson production via vector boson fusion (VBF) at the Large Hadron Collider (LHC) in the presence of anomalous couplings. The analysis…Tinghua Chen, Terrance Figy, Tunde Kushimo·Sep 2, 2026SaveLearn
Entanglement entropy minimization and global symmetry violation in scatteringsThe concept of quantum information has provided new ways to investigate the theoretical structure of particle interactions. In particular, it has been shown that extrema of quantum entanglement in…Shinya Kanemura, Masanori Tanaka·Sep 2, 2026SaveLearn
Dark Matter at the Kinematic Edge: Interpreting the 248 keV LZ Nuclear-Recoil CandidateThe LUX-ZEPLIN (LZ) Collaboration recently reported one event consistent with a 248 keV nuclear recoil in a 2.84 tonne-year exposure, with a maximum local significance of 3.4σ and a global…Mattia Di Mauro·Sep 2, 2026SaveLearn
D→ π transitions from QCD Light-Cone Sum Rules with the chiral currentsWe present a systematic study of the transition form factors for the semileptonic decays D→ Pe+ve and D→ Pμ+vμ using QCD light-cone sum rules with chiral…Di Gao, Jiangshan Lan, Duojie Jia et al.·Sep 2, 2026SaveLearn
Analysis of the two-body strong decays of the hidden-charm pentaquark states in QCD sum rulesIn the present work, we study the two-body strong decays of the hidden-charm pentaquark states with the quark content uudc c and the quantum numbers I(JP)=12(12-) in the…Zi-Hao Chen, Han-Xiong Huang, Jie Lu et al.·Sep 2, 2026SaveLearn
Dark Matter as the Z2 Partner of the Standard Model Higgs BosonA possible gamma-ray excess from the Galactic halo favors dark matter with a mass of several hundred GeV. In previous work, we found that an electroweak scalar doublet is a particularly economical,…Yasunori Nomura·Sep 2, 2026SaveLearn
Scalar Portal Verifiable Light Dark Matter and Correlated Gravitational Wave SignaturesThe lack of signals in direct detection experiments has placed the canonical Weakly Interacting Massive Particle (WIMP) paradigm under severe tension, motivating a shift toward the sub-GeV Light Dark…Ki-Young Choi, Erdenebulgan Lkhagvadorj, Satyabrata Mahapatra·Sep 2, 2026SaveLearn
Lepton-flavor violation and muon (g-2) in the flavor-dependent U(1)F modelLepton flavor violation (LFV) processes are forbidden in the standard model (SM), hence the observation of LFV transitions would represent a clear signal of new physics beyond the SM. In this work,…Yu-Ju Peng, Feng-Yan Niu, Qi-Zhen Qin et al.·Sep 2, 2026SaveLearn
Entanglement Signatures of Kinetic-Mixing Portals in Dark Monopole ScatteringWe examine the interaction between the Standard Model (SM) fermions and the topological dark magnetic monopoles mediated via a kinetic-mixing portal to investigate the generation of quantum…Shilpa Jangid, Hiroshi Okada·Sep 2, 2026SaveLearn
Strictly solvable d=4 quantum field theory models with unitarity violation. Possible implications for baryon asymmetry of the Universe and dark matterIn this paper we consider quantum field theory with unitarity violation. We construct several d = 4 strictly solvable models with unitarity violation. As a possible application of the models with…N. V. Krasnikov·Sep 2, 2026SaveLearn
Recoil Geometry Unmasks Gluon Saturation in Forward Z0 ProductionGluon saturation produces characteristic transverse-momentum broadening in nuclei, but QCD radiation largely washes out this signature. We show that fiducial recoil subtraction turns detector…Wanchen Li, Ding Yu Shao, Shu-Yi Wei et al.·Sep 2, 2026SaveLearn
Distribution amplitudes of vector and axial-vector mesons in a nonperturbatively improved symmetry-preserving frameworkUsing continuum Schwinger-function methods with a nonperturbatively improved, symmetry-preserving kernel, we deliver predictions for the leading-twist light-front distribution amplitudes (DAs) of the…Zhen-Ni Xu, Zhao-Qian Yao, Peng Cheng et al.·Sep 2, 2026SaveLearn
Quark masses and mixing in the D5 model under spontaneous CP violationIt is known that CP violation occurs in flavor physics, and the CKM matrix is complex. We investigate the Yukawa sector of a four-Higgs model based on D5 symmetry. To understand all possible sources…Dong-Ping Fu, Michihisa Takeuchi·Sep 2, 2026SaveLearn
Evading Sudakov Dilution in Gluon TomographySudakov broadening and competing azimuthal harmonics from final-state soft radiation limit the precision of gluon tomography. We suppress both effects using fiducial hadronic recoil---the vector sum…Shuo Lin, Jian Zhou·Sep 2, 2026SaveLearn
Macroscopic Coherent Axion Production by Reverse Parametric FluorescenceWe propose a macroscopically coherent laboratory source of axion-like particles (ALPs) through the axion--electron coupling \(gae\). Two counterpropagating optical modes drive reverse parametric…Zhan Bai, Baifei Shen, Liangliang Ji et al.·Sep 2, 2026SaveLearn
Quasicrystalline Inflation: From the Cosmological Dipole to Primordial DiffractionWe propose quasicrystalline inflation. Six quasiperiodic phases decompose into three phonons and three phasons. It turns out that a coherent pure-phason displacement can generate a local power dipole…Jiro Soda·Sep 2, 2026SaveLearn
Extension of the non-pole technique to the twist-3 gluon distribution contribution in pp collisionsIt is known that the Sivers effect is described as a twist-3 effect within the collinear factorization framework and has the characteristic feature that it arises from the pole contribution in a hard…Longjie Chen, Shinsuke Yoshida·Sep 2, 2026SaveLearn