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

Bjorken sum rule down to the elastic region from the lattice

This paper presents a lattice QCD determination of the Bjorken sum rule by calculating the lowest moment of the nucleon's polarized structure function g1g_1 across a wide range of momentum transfers (0.5≲Q2≲80.5\lesssim Q^2 \lesssim 8 GeV2^2) using the Feynman-Hellmann method, thereby enabling the study of higher-twist effects and providing an alternative hadronic evaluation of the strong coupling constant αs(Q2)\alpha_s(Q^2).

J. A. Crawford, A. Hannaford-Gunn, R. Horsley, P. E. L. Rakow, T. G. Schar, G. Schierholz, H. Stüben, R. D. Young, J. M. (…)2026-10-08
⚛️ nuclear theory

Two-pion exchange potential in D(∗)D(∗)D^{(*)}D^{(*)} system

Motivated by recent HAL QCD lattice results, this paper employs heavy-meson chiral perturbation theory to demonstrate that isospin-independent two-pion exchange contributions at next-to-next-to-leading order are crucial for reproducing the semi-long-range behavior of the DD-D∗D^* potential and predicts similar tails for other D(∗)D^{(*)}-D(∗)D^{(*)} systems.

Daiki Suenaga, Masayasu Harada2026-10-08
⚛️ high-energy experiments

Search prospect for electrophilic bosons at the μ\muTRISTAN

This paper proposes that the asymmetric μ+e−\mu^+e^- collision mode of the proposed μ\muTRISTAN collider operating at s=346\sqrt{s}=346~GeV offers a unique and powerful opportunity to search for electrophilic axion-like particles and Z′Z' bosons in the 5.5–300 GeV mass range, potentially improving existing coupling constraints by up to four orders of magnitude.

Amit Adhikary, Anindya Datta, Dilip Kumar Ghosh2026-10-08✓ Author reviewed ⓘ
⚛️ nuclear theory

An effective macroscopic description of early-stage chemical equilibration in high-energy heavy-ion collisions

This paper proposes an effective hydrodynamic framework that models early-stage quark chemical equilibration in high-energy heavy-ion collisions as the relaxation of an effective bulk viscous pressure, successfully bridging non-perturbative initial dynamics with the lattice QCD equation of state and demonstrating its phenomenological impact on final-state observables across various collision systems at the LHC.

Anar Akbarov, Hendrik Roch, Chun Shen2026-10-08
⚛️ lattice

Finite-size scaling analysis of three dimensional Z(2) and O(2) spin models with non-vanishing symmetry breaking parameter

This paper presents a high-statistics finite-size scaling analysis of 3D Z(2)Z(2) and O(2)O(2) spin models in an external field, deriving a specific parametric form for leading finite-size corrections that enables the elimination of systematic errors in determining the chiral phase transition temperature in (2+1)-flavor QCD.

Jishnu Goswami, Frithjof Karsch, Sabarnya Mitra2026-10-08
⚛️ phenomenology

Identifying Monochromatic Signals in LISA and Taiji via Spectral Split: Gravitational Waves versus Ultralight Dark Matter

This paper proposes a method to distinguish between monochromatic signals from ultralight dark matter and those from galactic compact binaries in space-based gravitational wave detectors like LISA and Taiji by analyzing the distinct spectral harmonics and annual modulation patterns induced by the detectors' heliocentric motion.

Yue-Hui Yao, Tingyuan Jiang, Wenyan Ren, Di Chen, Yong Tang, Yu-Feng Zhou2026-10-07