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.

Hybrid stars among mass gap objects are excluded by twin stars at 1.4M1.4\,M_\odot

This paper argues that hybrid stars are unlikely candidates for observed mass-gap compact objects because Bayesian analysis of modern mass-radius constraints favors equations of state with deconfinement occurring around 1.4M1.4\,M_\odot, which would produce twin stars that effectively rule out hybrid stars in the mass gap.

Alexander Ayriyan, David Blaschke, Marcin Dubaj, Oleksandr Vitiuk, Adrian Wojcik2026-06-03🔭 astro-ph

Thermal Metastable Strings in One-Scale Models and Gravitational Waves

This paper demonstrates that thermal effects in a minimal one-scale dark-sector gauge theory significantly alter the decay dynamics of metastable ZZ-strings by favoring thermally induced nucleation over zero-temperature monopole nucleation, thereby shifting the viable parameter space for explaining the nanohertz gravitational wave background observed by Pulsar Timing Arrays toward lower dark fine-structure constants and higher monopole-to-string-tension ratios.

Arturo de Giorgi, James Ingoldby, Valentin V. Khoze, Jessica Turner2026-06-03⚛️ hep-ph

Perturbative construction of amplitudes from on-shell trees with vacuum pairs: the all-plus four-gluon amplitude through order g6\boldsymbol{g}^{\boldsymbol{6}}

This paper proposes a fixed-order perturbative on-shell construction of scattering amplitudes using BCFW-generated trees and integrated vacuum pairs, successfully reproducing the known one- and two-loop all-plus four-gluon amplitudes up to order g6g^6 through a polygon-organized inclusion-exclusion framework.

M. Maniatis2026-06-03✓ Author reviewed ⚛️ hep-th