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.

⚛️ phenomenology

Hadronic Contributions to the Muon g2g-2 in Improved Holographic QCD Models

This paper systematically evaluates hadronic contributions to the muon g2g-2 within improved holographic QCD models, revealing that while the frameworks reproduce low-energy spectra, they underestimate the hadronic vacuum polarization due to a deficient ρ\rho-meson decay constant and exhibit significant variations in the hadronic light-by-light contribution driven by differences in the pion transition form factor at low momentum transfer.

Jin-Yang Shen, Wen-Yuan Peng, Ling-Yun Dai, Zhen Fang2026-03-02
⚛️ lattice

Finite-temperature Sp(4) Yang-Mills theory: towards the continuum

This paper presents a finite-temperature lattice study of Sp(4) Yang-Mills theory using the Logarithmic Linear Relaxation algorithm to characterize its first-order confinement/deconfinement phase transition, estimate discretization and finite-volume artifacts, and establish bounds for the continuum theory's critical coupling, specific heat, and surface tension.

Fabian Zierler, Ed Bennett, Biagio Lucini, David Mason, Maurizio Piai, Enrico Rinaldi, Davide Vadacchino2026-03-02
⚛️ nuclear experiments

SS factor of 13^{13}C(αα,nn)16^{16}O at low energies in cluster effective field theory

This paper employs cluster effective field theory, fitted to recent experimental data from the LUNA and JUNA collaborations, to calculate the SS factor of the 13^{13}C(α\alpha,nn)16^{16}O reaction at low energies and extrapolate it to the Gamow peak relevant for low-mass AGB stars, identifying the near-breakup threshold 1/2+1/2^+ state of 17^{17}O as the primary source of uncertainty.

Shung-Ichi Ando2026-03-02
⚛️ phenomenology

Parton distribution functions and theory parameters: an NNPDF perspective

This paper presents the NNPDF collaboration's perspective on the current status and challenges of determining Parton Distribution Functions, emphasizing their critical role in extracting fundamental Standard Model parameters and Beyond the SM Wilson coefficients through both stand-alone and joint analyses.

Richard D. Ball, Tommaso Giani, Felix Hekhorn, Jaco ter Hoeve, Tanjona R. Rabemananjara, Juan Rojo, Roy Stegeman, Maria (…)2026-03-02
⚛️ high-energy theory

Fermion Mass Hierarchy and a High Quality Axion From Gauged U(1) Flavor Symmetry

This paper proposes a class of models based on a gauged U(1)FU(1)_F flavor symmetry that simultaneously explains the fermion mass hierarchy via the Froggatt-Nielsen mechanism and solves the strong CP problem with a high-quality axion, while also providing a unified framework for dark matter, leptogenesis, and testable flavor-changing predictions.

K. S. Babu, Sai Charan Chandrasekar, Zurab Tavartkiladze2026-03-02