⚛️ Category

hep-ph

3413 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.

⚛️ nuclear theory

Mass spectra and Mott transitions of neutral mesons at finite temperature and magnetic field in frame of three-flavor Polyakov-extended Nambu-Jona-Lasino model

This study investigates the mass spectra and Mott transitions of neutral mesons (K0,Kˉ0,π0,η,η′K_0, \bar{K}_0, \pi_0, \eta, \eta') within a three-flavor Polyakov-extended Nambu-Jona-Lasino model at finite temperature and magnetic field, revealing how gluon effects and inverse magnetic catalysis influence chiral symmetry restoration, flavor mixing, and the temperature-dependent behavior of meson masses.

Luyang Li, Min Zhou, Zhiyang Liu, Chonglong Xie, Guoyun Shao, Shijun Mao2026-02-02
⚛️ high-energy theory

Spectrum of radiation from global strings and the relic axion density

This paper investigates the spectrum of radiation emitted by global strings to refine predictions for the relic axion density, finding that correcting for self-field effects and utilizing a "soft" exponential spectrum (rather than the "hard" spectra often seen in simulations) significantly alters the estimated axion mass range, potentially pointing to values between 4 and 160 μ\mueV depending on the emission mechanism.

Richard A. Battye, Lukasz P. Bunio, Steven J. Cotterill, Pranav B. Gangrekalve Manoj2026-02-02
⚛️ phenomenology

The LBT YpY_{\rm p} Project V: Cosmological Implications of a New Determination of Primordial 4^4He

This paper presents the most precise determination of the primordial helium-4 mass fraction to date, demonstrating that combining this new measurement with primordial deuterium data and cosmic microwave background observations yields a baryon density and effective number of neutrino species consistent with the Standard Model of particle physics and standard cosmology.

Tsung-Han Yeh, Keith A. Olive, Brian D. Fields, Erik Aver, Richard W. Pogge, Noah S. J. Rogers, Evan D. Skillman, Miqael (…)2026-02-02
⚛️ general relativity

Chaos in the near-horizon dynamics of the dyonic AdS4\rm{AdS_4}-Reissner-Nordström black hole

This paper investigates the dynamics of a probe massless particle near the horizon of a dyonic AdS4_4-Reissner-Nordström black hole under a harmonic potential, revealing that the extremal black hole limit exhibits a counteracting regulatory role where it enhances chaos at low energies (violating the Lyapunov bound) but suppresses it at high energies, thereby establishing a direct mapping between black hole thermodynamics and microscopic chaos.

Mu-Yang Wang, Si-Wen Li, Defu Hou, Dong Yan, Yan-Qing Zhao2026-02-02
⚛️ high-energy experiments

Radiative Dirac Neutrino Masses from Modular S3S_3 Symmetry in an Axion Model

This paper proposes a unified KSVZ-type axion model incorporating modular S3S_3 symmetry and a global U(1)PQU(1)_{\rm PQ} symmetry to simultaneously explain the origin of radiative Dirac neutrino masses, the strong CP problem, and dark matter, while predicting a massless neutrino and testable signatures for charged lepton flavor violation and axion-photon coupling.

Sin Kyu Kang, Ranjeet Kumar, Hiroshi Okada2026-02-02
⚛️ phenomenology

Complete Operator Basis for the modular invariant SMEFT

This paper systematically constructs a complete and finite basis of modular-invariant operators within the Standard Model Effective Field Theory (SMEFT) framework by implementing distinct A4A_4 flavor symmetries for quarks and leptons, utilizing Hilbert-series techniques to enumerate independent operators up to dimension 7 under holomorphic assumptions, and extending the formalism to non-holomorphic cases to avoid infinite proliferation while preserving key physical structures like the Weinberg operator.

Luo-Jia Kang, Hao Sun, Jiang-Hao Yu2026-02-02