⚛️ Category

hep-ph

3153 papers

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.

Temperature Dependence of the Masses of Various Meson States: A Comparative Study in SU(3) and SU(4) extended Linear-Sigma Model

This study utilizes the extended Linear-Sigma Model to demonstrate that incorporating SU(4) quark degrees of freedom yields meson mass predictions more consistent with experimental data than SU(3) models, while revealing that although meson masses exhibit unique temperature-dependent behaviors, they generally dissolve within a similar critical temperature range, with quarkonium states remaining largely unaffected.

Alexandra Friesen (Dubna, JINR), Yu. Kalinovsky (Dubna, JINR), Saleh O. Allehabi (Islamic U. Madinah), Norhan M. Rfeek (Assiut U.), Azzah A. Alshehri (Egyptian Ctr. Theor. Phys., Cairo,Hafr El Batin U (…)2026-05-26⚛️ hep-ph

Baryon-dark matter coincidence in Randall-Sundrum Model

This paper demonstrates that within the Randall-Sundrum extra-dimensional framework, where Standard Model and dark matter fields reside on the IR brane and interact via graviton and radion portals, the observed dark matter relic abundance and baryon asymmetry can be simultaneously explained through freeze-in production and TeV-scale leptogenesis, respectively, while satisfying cosmological constraints and being subject to current LHC graviton search limits.

Basabendu Barman, Ashmita Das, Partha Kumar Paul, Narendra Sahu, Rakesh Kumar SivaKumar2026-05-26⚛️ hep-ph

Helicity Softer Dipole Pomeron Model for Vector Meson Photoproduction by Arbitrarily Polarized Photons

This paper presents a novel Helicity Softer Dipole Pomeron model based on Regge theory that successfully describes the cross sections and spin observables of ρ0\rho^0 vector meson photoproduction by arbitrarily polarized photons across a wide energy range, significantly improving upon previous models and offering predictions for future experiments and cosmic-photon polarimetry.

Dart-yin A. Soh2026-05-26✓ Author reviewed ⓘ⚛️ hep-ph

Gravitational Baryogenesis in f(R)f(R) Cosmologies

This paper investigates gravitational baryogenesis within the Einstein frame for Starobinsky and a new power-law f(R)f(R) inflationary models, deriving analytic expressions for cosmological parameters and calculating baryon asymmetry factors that, while slightly lower than observed values when assuming a Planck-scale mass parameter, can be reconciled with observations by modestly reducing this mass scale.

Ian B. Whittingham2026-05-26⚛️ hep-ph

Hamilton-Jacobi Approach to Inflationary Scenarios through Extended Entropies: An Observational Perspective

This paper employs the Hamilton-Jacobi formalism to generalize slow-roll inflation through non-standard entropy frameworks, introducing a novel Hubble parametrization that yields observationally consistent constraints on Tsallis, Rényi, and Kaniadakis parameters while analyzing the impact of tensor-to-scalar ratio uncertainties on model viability.

H R M Zarandi, Esmaiel Ebrahimi, Yo Toda2026-05-26🔭 astro-ph

Resonant Enhancement for the transfer of baryon number from a CP-violating hidden sector

This paper proposes a mechanism for generating the observed baryon asymmetry via a CP-violating hidden sector portal that sequesters equal and opposite baryon numbers, demonstrating that while top quark decays suffice for generic parameters, bottom quark decays and mesogenesis scenarios require resonant enhancement to achieve maximal efficiency and are potentially testable with improved branching ratio measurements.

Can Kilic, Sanjay Mathai2026-05-26⚛️ hep-ph

Associated $ZH$ production in gluon fusion process at NLO+NLL

This paper presents precise NLO+NLL QCD calculations for associated $ZH$ production via gluon fusion at the LHC, demonstrating that threshold resummation enhances the cross-section by approximately 20% and significantly reduces scale uncertainties compared to fixed-order NLO results, while also combining these findings with Drell-Yan type calculations to achieve the most accurate predictions for hadron collisions.

Pulak Banerjee, Chinmoy Dey, Niraj Koirala, M. C. Kumar, Vaibhav Pandey2026-05-26⚛️ hep-ph