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.

⚛️ lattice

Lattice determination of the higher-order hadronic vacuum polarization contribution to the muon g−2g-2

This paper presents the first sub-percent precision lattice QCD calculation of the next-to-leading order hadronic vacuum polarization contribution to the muon anomalous magnetic moment, yielding a result that is twice as precise as the 2025 White Paper estimate and exhibits a 4.6σ\sigma tension with data-driven evaluations based on pre-CMD-3 hadronic cross-section measurements.

Arnau Beltran, Alessandro Conigli, Simon Kuberski, Harvey B. Meyer, Konstantin Ottnad, Hartmut Wittig2026-04-10
⚛️ high-energy experiments

Bˉ→D(∗)ℓνˉ\bar B\to D^{(*)}\ell\bar \nu Branching Ratios and Evidence for Isospin Breaking in Υ(4S)\Upsilon(4S) Decays

This paper presents a new method and comprehensive analysis of Bˉ→D(∗)ℓνˉ\bar B\to D^{(*)}\ell\bar \nu decays to determine the Υ(4S)\Upsilon(4S) production fraction ratio R±0R^{\pm0}, providing evidence for isospin violation at R±0=1.062(19)R^{\pm0}=1.062(19) and revising branching fractions to potentially alleviate the VcbV_{cb} puzzle.

Martin Jung, Stefan Schacht2026-04-10
⚛️ phenomenology

LFV decays in a 3-4-1 model with minimal inverse seesaw neutrinos

This paper investigates an extended 3-4-1 model incorporating a new singly charged Higgs boson and the minimal inverse seesaw mechanism, demonstrating that it can simultaneously explain the electron and muon (g−2)(g-2) anomalies and lepton-flavor-violating decay rates while predicting strong, testable correlations between these observables that are consistent with current experimental bounds.

N. H. T. Nha, L. T. Hue, L. T. T. Phuong, T. T. Hong2026-04-10
⚛️ nuclear theory

Kinetic and canonical momentum broadening in the Glasma

This paper establishes a quantum formalism for real-time particle evolution in the Glasma by linking classical Wong's equations to Heisenberg equations, deriving distinct equations of motion for gauge-invariant kinetic and canonical momenta, and demonstrating that a transverse Coulomb gauge condition optimizes numerical accuracy for future quantum implementations.

Dana Avramescu, Carlos Lamas, Tuomas Lappi, Meijian Li, Carlos A. Salgado2026-04-10
⚛️ phenomenology

SUSY meets SMEFT: Complete one-loop matching of the general MSSM

This paper presents the complete one-loop matching of the general 124-parameter MSSM with conserved R-parity onto both the SMEFT and the two-Higgs-doublet-model EFT using the Matchete package, providing a comprehensive framework for systematic global studies of supersymmetric parameter space while retaining full flavor structure and non-degenerate superpartner masses.

Sabine Kraml, Andre Lessa, Suraj Prakash, Felix Wilsch2026-04-09
⚛️ phenomenology

Projections of H→ττ\to\tau\tau cross-section at FCC-ee

This paper presents projections for the precision of Higgs boson cross-section measurements in the H→ττ\to\tau\tau decay channel at the FCC-ee across multiple production mechanisms and energies, demonstrating an expected improvement of at least an order of magnitude over current LHC sensitivities through advanced tau decay reconstruction techniques.

Sofia Giappichini, Markus Klute, Matteo Presilla, Xunwu Zuo, Maria Cepeda2026-04-09
⚛️ phenomenology

Revisiting μ\mu-ee conversion in RR-parity violating SUSY

This paper revisits μ\mu-ee conversion in R-parity violating supersymmetry by incorporating renormalization group running effects to derive updated constraints on trilinear couplings, demonstrating that while these effects are often modest, they can significantly tighten limits in specific cases and highlighting the superior sensitivity of upcoming COMET and Mu2e experiments compared to current decay searches.

Yu-Qi Xiao, Xiao-Gang He, Hong-Yi Niu, Rong-Rong Zhang2026-04-09