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.

⚛️ phenomenology

Cutoff Scales in the Type-I 2HDM with Strongly First-Order Electroweak Phase Transitions: One-Step versus Multistep

This paper investigates the UV viability of strongly first-order electroweak phase transitions in the Type-I 2HDM, revealing that while one-step transitions face a severe tension between transition strength and high-scale validity, multistep transitions in the Inverted Scenario can achieve both strong transitions and consistency up to the Planck scale, thereby favoring a light scalar spectrum and moderate tan⁡β\tan\beta as a promising target for collider searches.

Jin-Hwan Cho, Dongjoo Kim, Jinheung Kim, Jeonghyeon Song2026-09-10
⚛️ nuclear theory

MUSES workflows for pQCD constraints on dense matter with finite quark masses

This paper presents a modular implementation of next-to-leading order perturbative QCD thermodynamics with finite strange quark mass in the MUSES engine, demonstrating how renormalization-scale prescriptions and strange quark mass significantly influence the flavor composition and equation of state of dense matter, thereby refining constraints on neutron star physics.

Isabella Danhoni, Mateus Reinke Pelicer, Débora Mroczek, Yumu Yang, Mauricio Hippert, Jacquelyn Noronha-Hostler2026-09-10
⚛️ phenomenology

Inclusive productions of J/ψ+ηcJ/\psi+\eta_c in e+e−e^{+}e^{-} annihilation at Belle

This paper presents a next-to-leading order NRQCD analysis of inclusive J/ψ+ηcJ/\psi+\eta_c production in e+e−e^+e^- annihilation, demonstrating that color-octet mechanisms and feed-down effects significantly enhance cross sections at Υ(4S)\Upsilon(4S) energies and offering a promising avenue for observation using Belle's detector capabilities.

Zhan Sun, Shu-Jian Qi, Ying-Zhao Jiang2026-09-10
⚛️ phenomenology

Radiative Corrections to the Direct Detection of Inelastic Scattering of Higgsino-like Neutralino Dark Matter

This paper investigates how on-shell renormalization and one-loop electroweak corrections can significantly enhance the direct detection rates of Higgsino-like dark matter by demonstrating that inelastic scattering processes may dominate over elastic ones in scenarios with extremely tiny mass splittings, thereby increasing the expected event rates in the LUX-ZEPLIN experiment.

Arindam Chatterjee, Debottam Das, Syed Adil Pasha, Alexander Pukhov, Rahul Puri2026-09-10
⚛️ nuclear theory

Zero-locus diagnostic of the direct contact term in ϕ→π+π−π0\phi\to\pi^+\pi^-\pi^0

This paper proposes a zero-locus diagnostic method within an FSI-improved amplitude framework to validate and stabilize the extraction of the direct contact term in ϕ→π+π−π0\phi\to\pi^+\pi^-\pi^0 decays, demonstrating its ability to recover the injected coupling constant and identify well-conditioned regions of the Dalitz plot for future global fits.

Seung-il Nam, Jung Keun Ahn2026-09-10
⚛️ general relativity

Pulsar Timing Response and Spatial Correlations of Shear Modes in Torsionless Palatini Spacetime

This paper derives the pulsar timing response and spatial correlations for shear modes in torsionless Palatini spacetime, revealing that the resulting dipolar correlation function is degenerate with Solar System ephemeris errors, thereby necessitating additional information beyond angular correlations to distinguish these signatures in pulsar timing array data.

Tian-Shi Li, Yu-Mei Wu, Chang Liu2026-09-10
⚛️ lattice

An improved partial-wave projection of the one-particle exchange in relativistic three-body scattering

This paper presents an improved, finite-sum expression for the partial-wave projection of the one-particle exchange process in relativistic three-body scattering of massive, spinless particles, which accurately reproduces known physical properties while significantly enhancing computational efficiency for constructing robust amplitude analyses.

Nicholas C. Chambers, Andrew W. Jackura2026-09-10