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

Mechanisms of high energy polarized photoproduction of π−Δ++\pi^{-}\Delta^{++}

This paper presents a Regge exchange model analysis of high-energy polarized π−Δ++\pi^-\Delta^{++} photoproduction data from GlueX and SLAC, using spin density matrix elements to constrain helicity amplitudes and providing the first extractions of several meson-nucleon-delta coupling constants.

Vanamali Shastry, Łukasz Bibrzycki, Vincent Mathieu, Glòria Montaña, Alessandro Pilloni, César Fernández-Ramírez, Robert (…)2026-04-27
⚛️ high-energy experiments

Neutrino Masses and Phenomenology in Nnaturalness

This paper demonstrates that NNnaturalness scenarios naturally suppress neutrino masses through a mechanism involving numerous mixing partners, leading to a specific tower of additional neutrino mass eigenstates that offers unique, testable signatures in terrestrial oscillation, mass, and neutrinoless double beta decay experiments, thereby extending the model's phenomenological reach beyond cosmology.

Manuel Ettengruber2026-04-24
⚛️ phenomenology

Nonfactorizable charming loops in exclusive FCNC BB decays

This paper compares nonfactorizable charm-quark loops in exclusive FCNC BB decays with three-particle contributions to semileptonic BB-decay amplitudes, highlighting that while both are described by a convolution involving the BB-meson's three-particle wave function in the heavy-quark limit, they differ fundamentally in their light-cone configurations (double collinear versus single collinear).

Dmitri Melikhov2026-04-24
🔬 mesoscale physics

Angular-resolved nonlinear optical response as a probe of Lorentz violation in noncentrosymmetric materials

This paper proposes a method to detect weak Lorentz-violating backgrounds in noncentrosymmetric crystals by measuring a distinct π\pi-periodic angular modulation in the nonlinear shift photocurrent, which arises from momentum-odd corrections to the Bloch Hamiltonian and offers sensitivity to coupling strengths as low as ξ∼10−24 C m\xi\sim10^{-24}\,\mathrm{C\,m}.

Guilherme J. Inacio, Nathanael N. Batista, Wesley Spalenza, Humberto Belich, Juan José Palacios, Wendel S. Paz2026-04-24