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.

Comparison of the hadronic vacuum polarization between hadronic τ\tau-decay data and lattice QCD

This paper compares isospin-symmetric lattice QCD calculations of hadronic vacuum polarization with dispersive results derived from corrected hadronic τ\tau-decay data, finding generally good agreement overall but revealing significant discrepancies in the 2ππ+π02\pi^-\pi^+\pi^0 four-pion mode when evaluated against expectations from Pais relations and e+ee^+e^- cross sections.

Noah Allen, Diogo Boito, Maarten Golterman, Kim Maltman, Lucas M. Mansur, Santiago Peris2026-05-13⚛️ hep-lat

Toward Charge-Dependent Tests of the Equivalence Principle: A Phenomenological Parameter and an Unexplored Frontier

This paper introduces the phenomenological parameter κ\kappa to quantify charge-dependent violations of the Equivalence Principle, establishes a new experimental bound of κ<2.1×104 \si\kilo\gram\per\coulomb|\kappa| < 2.1 \times 10^{-4}~\si{\kilo\gram\per\coulomb}, and argues that measuring this parameter offers a unique, unexplored pathway to detect new physics beyond minimal gravitational effective field theories.

Renato Vieira dos Santos2026-05-13⚛️ hep-ph

Quasi Parton Distribution Functions in Covariant Quark Models

This paper establishes general proofs for the convergence and sum rules of unpolarized quark and antiquark quasi parton distribution functions (QPDFs) within a broad class of gauge-free covariant quark models, specifically illustrating these findings with the Covariant Parton Model to derive analytical results for small-xvx_v behavior and energy-momentum tensor form factors.

Fatma Aslan, Asli Tandogan, Peter Schweitzer2026-05-13⚛️ hep-ph

Ultraheavy Ultrahigh-Energy Cosmic Rays

This paper proposes that ultraheavy nuclei could constitute the highest-energy cosmic rays, offering a consistent explanation for the Amaterasu particle, constraints on source energy generation rates, and the spectral tension between Telescope Array and Pierre Auger Observatory data, while predicting distinct shower maximum depths for future experimental verification.

B. Theodore Zhang, Kohta Murase, Nick Ekanger, Mukul Bhattacharya, Shunsaku Horiuchi2026-05-12⚛️ nucl-th

Correlative study of flavor anomalies and dark matter in the light of scalar leptoquark

This paper proposes a U(1)LeLμU(1)_{L_e-L_\mu} gauge extension of the Standard Model featuring a scalar leptoquark, new fermions, and inert scalars to simultaneously explain BB-meson flavor anomalies, generate neutrino masses, and provide a dark matter candidate, while analyzing constraints from bsb \to s transitions and predicting observables for Λb\Lambda_b decays.

Manas Kumar Mohapatra, Shivaramakrishna Singirala, Dhiren Panda, Rukmani Mohanta2026-05-12⚛️ hep-ph

Nucleosynthesis and CMB bounds on photophilic ALPs: a fresh look

This paper provides a model-independent re-evaluation of cosmological constraints on photophilic axion-like particles with masses below 10 GeV and lifetimes under 10410^4 seconds by incorporating rare hadronic decays and reheating temperature dependencies, revealing extended bounds and potential parameter space to resolve tensions in NeffN_{\rm eff} and deuterium abundance.

Miguel Escudero, Clara Garcia-Perez, Maksym Ovchynnikov2026-05-12⚛️ hep-ph

Complete one-loop QED corrections to Ds+D_s^+ leptonic decays and impact on the CKM unitarity test

This paper presents the first complete analytical derivation of one-loop electroweak and QED corrections to Ds+D_s^+ leptonic decays, demonstrating that incorporating these radiative effects resolves the reported violation of CKM unitarity in the second column and highlights the need for improved lattice simulations including QED corrections to further confirm the Standard Model.

Teppei Kitahara, Jun Miyamoto, Kota Sasaki2026-05-12⚛️ hep-ex