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.

Lecture notes on Machine Learning applications for global fits

This paper presents a comprehensive framework for accelerating high-energy physics global fits by employing Machine Learning surrogates, specifically Boosted Decision Trees trained via active learning, to approximate log-likelihood functions and efficiently explore parameter spaces, as demonstrated by an application to the B±K±ννˉB^\pm \to K^\pm \nu \bar{\nu} anomaly and Axion-Like Particles at Belle II.

Jorge Alda2026-04-10⚛️ hep-ph

Multi Component Dark Matter in a Minimal Model

This paper proposes a minimal multi-component dark matter model featuring two singlet fermions and a singlet scalar coupled via a Higgs portal, demonstrating that a viable parameter space exists where the loop-suppressed fermions constitute the dominant relic density while evading direct detection limits, and the tree-level interacting scalar provides a subdominant contribution that remains consistent with current experimental bounds.

Karim Ghorbani2026-04-10⚛️ hep-ph

Oblique Shocks at Supernova Remnants in Massive Star Clusters: A Model for the Cosmic-Ray Knee Observed by LHAASO

This paper proposes that oblique shocks within massive star clusters, driven by combined supernova and collective wind interactions, serve as a unified mechanism to accelerate cosmic rays to multi-PeV energies, successfully reproducing the all-particle spectrum and rigidity-dependent knee observed by LHAASO while predicting detectable gamma-ray and neutrino emissions.

Luana N. Padilha, Rita C. Anjos2026-04-10⚛️ hep-ph

Lattice determination of the higher-order hadronic vacuum polarization contribution to the muon g2g-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⚛️ hep-lat

BˉD()νˉ\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 BˉD()νˉ\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⚛️ hep-ex

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 (g2)(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⚛️ hep-ph

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⚛️ nucl-th