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.

Magnetic susceptibility of a hot hadronic medium and quark degrees of freedom near the QCD cross-over point

This paper proposes a quark-meson framework incorporating temperature-dependent quark masses and anomalous magnetic moments to reconcile lattice QCD magnetic susceptibility data with theoretical models, demonstrating that quark degrees of freedom must emerge significantly below the QCD cross-over temperature (around 120 MeV) to explain the observed paramagnetism.

Rupam Samanta, Wojciech Broniowski2026-04-07⚛️ hep-lat

Illuminating sequential freeze-in dark matter with dark photon signal at the CERN SHiP experiment

This paper demonstrates that the CERN SHiP experiment can probe sequential freeze-in dark matter mediated by dark photons with masses between 10210^{-2} and $10$ GeV, predicting a specific dark charge and a narrow mixing parameter range (1011\sim 10^{-11}) that survives current constraints while remaining testable via proton bremsstrahlung signals.

Xinyue Yin, Sibo Zheng2026-04-07⚛️ hep-ex

Stellar Superradiance and Low-Energy Absorption in Dense Nuclear Media

This paper demonstrates that while naive extrapolations of microphysical absorption rates suggest ultralight bosons could rapidly drain neutron star rotational energy via superradiance, accounting for collective multiple-scattering effects in dense nuclear matter significantly suppresses these rates, thereby reconciling stellar cooling constraints with superradiance stability.

Zhaoyu Bai, Vitor Cardoso, Yifan Chen, Yuyan Li, Jamie I. McDonald, Hyeonseok Seong2026-04-07⚛️ hep-ph

Joint Constraints on Neutrinos and Dynamical Dark Energy in Minimally Modified Gravity

This paper demonstrates that the ww_{\dagger}VCDM framework of minimally modified gravity, when combined with current cosmological data and an extended neutrino sector, robustly accommodates neutrino constraints while predicting a stable late-time dark energy transition that significantly alleviates the H0H_0 tension.

Artur Ladeira, Rafael C. Nunes, Supriya Pan, Weiqiang Yang2026-04-07⚛️ hep-ph

Semileptonic decay form factors of Ξb0Ξc+νˉ\Xi_b^0 \rightarrow \Xi_c^+\ell\bar{\nu}_{\ell} in HQET

This paper investigates the semileptonic decay Ξb0Ξc+νˉ\Xi_b^0 \rightarrow \Xi_c^+\ell\bar{\nu}_{\ell} using a phenomenological quark model combined with Heavy Quark Effective Theory to calculate form factors, decay rates, and the lepton flavor universality ratio, finding results consistent with existing theoretical predictions.

Kinjal Patel, Kaushal Thakkar2026-04-07⚛️ hep-ph

Relativistic and Recoil Corrections to Light-Fermion Vacuum Polarization for Bound Systems of Spin-0, Spin-1/2, and Spin-1 Particles

This paper generalizes the calculation of relativistic and recoil corrections to light-fermion vacuum polarization for bound systems composed of spin-0, spin-1/2, and spin-1 particles, providing energy corrections of order α5mr\alpha^5 m_r for various systems including pionium, muonic hydrogen, and deuteronium.

G. S. Adkins, U. D. Jentschura2026-04-07⚛️ hep-ph