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.

⚛️ nuclear theory

A Comparative Study of Mass Extraction Schemes and π±−ρ±\pi^\pm-\rho^\pm Mixing

This work investigates the cause of the non-monotonic magnetic-field-dependent charged-pion excitations in the NJL model and shows that while certain mass-generation schemes cannot reproduce the reversal observed in lattice calculations, direct determinant and near-pole methods robustly confirm this behavior as a genuine quasiparticle mixing effect between pions and rho mesons.

Ziyue Wang2026-05-08
⚛️ phenomenology

Towards Precision Neutrino Fits in GUTs: Relevance of One-Loop Finite Corrections

This paper demonstrates that incorporating one-loop finite corrections into fermion mass fits within the minimal SO(10)SO(10) grand unified theory is essential for precision, as these radiative effects induce significant (30–40%) deviations in neutrino observables that render conventional tree-level analyses insufficient for reliable parameter space exploration.

Chee Sheng Fong, Shaikh Saad2026-05-08
⚛️ high-energy theory

The Hagedorn Temperature as a Nonequilibrium Dynamical Bottleneck in String Thermodynamics

This paper reinterprets the Hagedorn temperature in string theory as a nonequilibrium dynamical bottleneck using Steepest-Entropy-Ascent Quantum Thermodynamics, demonstrating how the exponential density of states and its algebraic prefactor govern the slowing-down of effective intensive variables and the breakdown of thermodynamic descriptions.

Cesar Damian, Oscar Loaiza-Brito2026-05-08
⚛️ lattice

The strange and flavor-singlet axial form factors of the nucleon from lattice QCD

This work presents a comprehensive lattice-QCD determination of the flavor-singlet and strange axial form factors of the nucleon using Nf=2+1N_f = 2+1 CLS gauge configurations with O(a)O(a)-improved Wilson fermions, providing a complete error budget for the extrapolations with respect to chiral symmetry, the continuum limit, and infinite volume, with a specific focus on the treatment of discontinuous contributions.

Alessandro Barone, Dalibor Djukanovic, Georg von Hippel, Harvey B. Meyer, Konstantin Ottnad, Hartmut Wittig2026-05-08
⚛️ phenomenology

BRICKS: Compositional Neural Markov Kernels for Zero-Shot Radiation-Matter Simulation

This paper introduces BRICKS, a differentiable, compositional neural surrogate based on hybrid discrete-continuous transformers and Riemannian Flow Matching that enables zero-shot, high-speed simulation of radiation-matter interactions by composing next-particle prediction kernels to model unseen large-scale material distributions.

Richard Hildebrandt, Evangelos Kourlitis, Baran Hashemi, Manuel Bünstorf, Thierry Meyer, Nikola Boskov, Michael Kagan, D (…)2026-05-08
⚛️ phenomenology

TMDs in the Lens of Generative AI: A Pixel-Based Approach to Partonic Imaging

This paper presents a novel, nonparametric pixel-based framework that leverages generative AI and Bayesian inference to simultaneously extract transverse momentum dependent (TMD) parton distributions and their evolution kernels, thereby enabling unbiased 3D partonic imaging while rigorously characterizing uncertainties and resolving inherent degeneracies.

Marco Zaccheddu, Leonard Gamberg, Wally Melnitchouk, Daniel Pitonyak, Alexei Prokudin, Jian-Wei Qiu, Nobuo Sato2026-05-08
⚛️ phenomenology

Probing Low-Luminosity Gamma-Ray Emission from SNR G296.5+10.0 and CCO 1E 1207.4-5209 with CTAO

This study models the transport of cosmic rays and the gamma-ray emission from SNR G296.5+10.0 and the associated CCO 1E 1207.4-5209, showing that the Cherenkov Telescope Array Observatory (CTAO) can detect the characteristic hadronic and leptonic emissions of this unique system to provide, for the first time, constraints on particle acceleration in environments of luminosity-weak CCO supernova remnants.

Luana N. Padilha, Rubens Jr. Costa, Rita C. dos Anjos, Jaziel G. Coelho2026-05-07
⚛️ phenomenology

Curvature Perturbations from First-Order Phase Transitions: Implications to Black Holes and Gravitational Waves

This work demonstrates that employing a fully covariant formalism to account for previously overlooked gauge dependencies reveals that the formation of primordial black holes and scalar-induced gravitational waves from first-order phase transitions is strongly suppressed, thereby calling into question their suitability as an explanation for the recent signals from pulsar timing arrays.

Gabriele Franciolini, Yann Gouttenoire, Ryusuke Jinno2026-05-07