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.

The hadronic contribution to the running of the electroweak gauge couplings

Using Nf=2+1N_f=2+1 CLS lattice ensembles with a refined analysis strategy involving telescopic series and new kernel functions, this paper presents an updated, high-precision ab initio determination of the hadronic vacuum polarization contribution to the running of the electromagnetic coupling and the electroweak mixing angle, aiming to meet the projected precision requirements of future electroweak measurements at next-generation colliders.

Alessandro Conigli, Dalibor Djukanovic, Georg von Hippel, Simon Kuberski, Harvey B. Meyer, Kohtaroh Miura, Konstantin Ottnad, Andreas Risch, Hartmut Wittig2026-04-01⚛️ hep-lat

Conventional and Unitarity-Conserving Pecci-Quinn Inflation Models and ACT

This paper demonstrates that a unitarity-conserving Peccei-Quinn inflation model, unlike its conventional counterpart, achieves better agreement with ACT observational data on the scalar spectral index and permits significantly larger axion decay constants (fa6.4×1013f_a \leq 6.4 \times 10^{13} GeV) without requiring unnaturally small self-couplings, thereby allowing faf_a to exceed the standard cosmological symmetry restoration bound.

J. McDonald2026-04-01⚛️ hep-ph

Warm Warped Throats

This paper investigates two distinct single-field brane inflation scenarios—radial and angular—within a warped deformed conifold geometry, where moduli stabilization via D7-brane Kuperstein embeddings generates the inflaton potentials, demonstrating that embedding these models in the warm inflation paradigm with dissipation enables them to satisfy current observational constraints from Planck and ACT, whereas their cold inflation counterparts fail.

Dibya Chakraborty, Rudnei O. Ramos2026-04-01⚛️ hep-th

NNLO QCD corrections to unpolarized and polarized electroweak structure functions in semi-inclusive deep-inelastic scattering

This paper presents next-to-next-to-leading order (NNLO) QCD corrections for both unpolarized and polarized semi-inclusive deep-inelastic scattering structure functions involving neutral and charged current interactions, demonstrating their significant phenomenological impact and reduced scale dependence for future Electron-Ion Collider analyses and global parton distribution function extractions.

Saurav Goyal, Sven-Olaf Moch, Vaibhav Pathak, V. Ravindran2026-04-01⚛️ hep-ph

Detecting meV-Scale Dark Matter via Coherent Scattering with an Asymmetric Torsion Balance

This paper proposes a novel torsion balance experiment using test bodies of varying geometric sizes to detect meV-scale dark matter through its coherently enhanced scattering effects, thereby establishing the strongest constraints on dark matter-nucleon scattering cross-sections in the (103,1)(10^{-3}, 1) eV mass range.

Pengshun Luo, Shigeki Matsumoto, Jie Sheng, Chuan-Yang Xing, Lin Zhu, Zhi-Jie Zhuge2026-03-31⚛️ hep-ph

Magnetodynamic Characteristics and QGP Energy Dissipation in RMHD Framework with Relativistic Heavy-Ion Collisions

This study utilizes a (1+1)D relativistic magnetohydrodynamic framework with Bjorken flow to demonstrate how time-dependent ultra-strong magnetic fields and temperature-dependent magnetic susceptibility differentially influence Quark-Gluon Plasma energy density evolution, revealing that magnetic pressure suppresses decay in ultra-relativistic fluids while enhanced coupling accelerates dissipation in conformal fluids.

Huang-Jing Zheng, Sheng-Qin Feng2026-03-31⚛️ nucl-th