hep-ph papers | Gist.Science

Hep-Ph explores the fundamental forces that govern how particles interact and behave at the smallest scales imaginable. This field bridges the gap between theoretical predictions and experimental reality, helping scientists understand the building blocks of our universe without getting lost in complex mathematics. Whether investigating the Higgs boson or searching for new physics beyond current models, these studies push the boundaries of human knowledge about matter and energy.

At Gist.Science, we process every new preprint in this category as soon as it appears on arXiv. We strip away the dense jargon to offer both accessible plain-language explanations and detailed technical summaries, ensuring that groundbreaking research is understandable to everyone from students to seasoned experts. Below are the latest papers in this dynamic field, ready for you to explore with clarity and depth.

Modeling an internal structure of a black hole using a thermodynamic quasi-particle model

This paper proposes an effective thermodynamic model for a black hole's interior composed of scalar quasiparticles, distinguishing between a dense core governed by a potential-energy functional and an inverse-temperature-like parameter, and a surrounding crust with finite kinetic temperature, to provide a unified framework for exploring singularity resolution and the thermodynamic origins of negative pressure and energy density.

Sergey Bondarenko, Dima Cheskis, Raghvendra Singh2026-04-30⚛️ gr-qc

Amplifying muon-to-positron conversion in nuclei with ultralight dark matter

This paper demonstrates that an ultralight scalar dark matter field coupling to neutrinos can significantly amplify the rate of lepton-flavour-violating muon-to-positron conversion in nuclei, thereby enabling upcoming experiments to establish stringent new constraints on neutrino-dark matter couplings that surpass current cosmological and terrestrial limits.

Purushottam Sahu, Manibrata Sen2026-04-30⚛️ nucl-th

Constraining light dark matter in vector-scalar portals with COSI and AMEGO-X

This work assesses the sensitivity of the upcoming gamma-ray missions COSI and AMEGO-X to sub-GeV fermionic dark matter in vector-scalar portal models and demonstrates that COSI can provide leading constraints on gamma-ray lines beyond CMB limits, while AMEGO-X can probe most of the viable parameter space for continuous gamma rays.

Maíra Dutra, Clarissa Siqueira, Tonia M. Venters2026-04-30🔭 astro-ph

Electric flux tube solutions in SU(3) gauge theory

The work constructs a stable solution of a type-3 electric flux tube in SU(3) gauge theory with fundamental scalar fields that resists Schwinger pair production, while noting the failure to construct a corresponding type-8 solution.

Jude Pereira, Tanmay Vachaspati2026-04-30⚛️ hep-th

Study of Form Factors and Observables in $B_c^- \rightarrow \bar{D}^{()0}\ell^-\barν_{\ell}$ and $B_c^- \rightarrow D^{()-}\ell^+\ell^-$ decays

This paper investigates the Standard Model predictions for $B_c^-$ decays into charmed mesons and leptons by employing perturbative QCD form factors constrained by lattice QCD inputs and heavy quark spin symmetry to calculate branching fractions, lepton flavor violating observables, and detailed angular distributions.

Utsab Dey, Soumitra Nandi2026-04-30⚛️ hep-ph

Weakly turbulent saturation of the nonlinear scalar ergoregion instability

This paper demonstrates through time-domain simulations that the nonlinear scalar ergoregion instability on horizonless spinning ultracompact spacetimes saturates via a weakly turbulent direct cascade, which rapidly transfers energy to small scales and populates the stable light ring with higher-order modes, suggesting similar turbulent mechanisms will shape gravitational wave signatures in fully gravitational scenarios.

Nils Siemonsen2026-04-30⚛️ gr-qc

Optimization of factorization scale in QED Drell-Yan-like processes

This paper investigates the dependence of initial-state radiation corrections in $e^+e^-$ -annihilation processes on the factorization scale by analyzing various prescriptions within leading and next-to-leading logarithmic approximations and optimizing the scale choice through comparison with complete two-loop results.

Andrej Arbuzov, Uliana Voznaya, Aliaksandr Sadouski2026-04-30⚛️ hep-ph

Revisiting lepton flavor violation: $τ$ and meson decays

This paper revisits charged lepton flavor violation in the minimal type-I seesaw model using updated data, revealing that certain semileptonic tau decays can dominate over purely leptonic channels in specific parameter regions while heavy-meson decays remain experimentally inaccessible.

Kevin A. Urquía-Calderón, Oleg Ruchayskiy2026-04-30⚛️ hep-ph

Spectrum of $J^{PC} = 0^{\pm\pm}$ Gluonic Hidden-Charm Tetraquark States

This paper employs QCD sum rules to construct interpolating currents for gluonic hidden-charm tetraquark states with $J^{PC} = 0^{\pm\pm}$ quantum numbers, predicting the existence of six stable states and estimating their hidden-bottom partners, decay channels, and production mechanisms to guide future experimental searches.

Bing-Dong Wan, Ming-Yang Yuan, Jun-Hao Zhang, Yan Zhang2026-04-30⚛️ hep-ph

Astrophysical constraints on the cold equation of state of the strongly interacting matter

This study utilizes astrophysical observations, including massive pulsar measurements, NICER data, and GW170817 tidal deformability constraints alongside perturbative QCD calculations, to significantly restrict the admissible parameter space for the equation of state of cold, dense strongly interacting matter.

Gábor Kasza, János Takátsy, György Wolf2026-04-30⚛️ nucl-th

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