⚛️ Category

hep-ph

5243 papers

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.

⚛️ lattice

Nuclear modifications on longitudinal-transverse structure-function ratio RR in the deuteron

This paper challenges the long-held assumption that nuclear modifications do not affect the longitudinal-transverse structure-function ratio RR by demonstrating, through a convolution model of nucleon Fermi motion in the deuteron, that the mixing of longitudinal and transverse components and differing xx-dependencies lead to significant nuclear effects that are currently being investigated experimentally at Jefferson Lab.

S. Kumano2026-09-17
⚛️ phenomenology

Internal structure of exotic hadron candidate f0f_0(980) by using fragmentation functions

By analyzing fragmentation functions from high-energy hadron reactions, this study suggests that the internal structure of the f0f_0(980) candidate appears as a conventional ssˉs\bar{s} state at high energies, contrasting with its tetraquark or molecular interpretation at low energies and implying that exotic hadron configurations may depend on the energy scale.

S. Kumano2026-09-17
⚛️ phenomenology

Probing Feebly Interacting Particles with 511 keV Line from Circumstellar Medium of Supernovae

This paper proposes that feebly interacting particles (FIPs) escaping core-collapse supernovae and decaying within the circumstellar medium can produce a distinctive 511 keV gamma-ray line and a rapid infrared-to-optical spectral transition, offering a novel multiwavelength signature for detecting MeV-scale dark photons with future missions like COSI and AMEGO.

Yu Cheng, Chui-Fan Kong, Yen-Hsun Lin, Meng-Ru Wu, Seokhoon Yun2026-09-17
⚛️ phenomenology

Lévy structure of the forward fixed-coupling BFKL kernel and a fixed-order obstruction to positivity in the symmetric scheme

This paper establishes a Lévy jump-process interpretation for the leading-order fixed-coupling BFKL kernel but demonstrates that fixed-order next-to-leading corrections in the symmetric scheme inherently violate positivity due to a dominant negative cubic collinear pole, a property that persists across various resummation attempts and remains unresolved for a probabilistic interpretation.

Alex Prygarin, Claudelle Capasia Madjuogang Sandeu, Karam Shekh Yusuf2026-09-17
⚛️ high-energy theory

Reduction of the six-dimensional qq-form fields to the four-dimensional fields by coupling with gravity

This paper investigates the localization of scalar, vector, and Kalb-Ramond fields on a codimension-two brane within a six-dimensional gravity framework, demonstrating that massless modes can be localized for positive coupling parameters while specific conditions on the coupling allow all massive modes to be trapped in infinitely deep potential wells without tachyonic instabilities.

Yong-Tao Lu, Heng Guo, Qun Wei, Bing Wei2026-09-17
⚛️ phenomenology

Reheating Bounds from Thermal GUT Monopole Production

This paper calculates the thermal production of Grand Unified Theory monopoles in the early Universe, incorporating relativistic corrections and enhanced annihilation mechanisms, to establish stringent upper bounds on the reheating temperature relative to the GUT symmetry breaking scale (TRH/TGUT≲0.35–0.55T_{\rm RH}/T_{\rm GUT} \lesssim 0.35\text{--}0.55) required to satisfy current dark matter, Parker, and Super-Kamiokande observational constraints.

Donald Liveoak, Arielle Schutz, James D. Wells2026-09-17
⚛️ phenomenology

Scheme transformations as the gauge group of DGLAP: sum rules, classification and solution

This paper establishes that DGLAP evolution kernels can be treated as gauge fields under scheme transformations, providing a complete classification of symmetry-preserving transformations, a method to repair sum-rule violations, and a novel solution technique that reduces the evolution equations to a single second-order differential equation while exactly respecting physical sum rules.

Tommaso Rainaldi2026-09-17