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

Low-xx parton densities accounting for absorptive effects and exclusive J/ψJ/\psi and Υ\Upsilon data from the LHC

This paper utilizes combined HERA DIS and LHC exclusive J/ψJ/\psi and Υ\Upsilon data within the xFitter\texttt{xFitter} framework to investigate the impact of absorptive corrections and non-linear evolution on low-xx parton distribution functions, ultimately determining the effective size of proton hot spots and discussing implications for future global PDF analyses.

V. Bertone, C. A. Flett, A. D. Martin, M. G. Ryskin2026-08-27
⚛️ lattice

Mixing effects in radiative decays of heavy-strange axial-vector mesons within light-cone QCD sum rules

This paper utilizes light-cone QCD sum rules to calculate the radiative decay widths of heavy-strange axial-vector mesons, demonstrating that the significant difference in decay patterns between the lower and higher states arises from the constructive and destructive interference of 1P1^{1}P_{1}-3P1^{3}P_{1} mixing, respectively.

T. M. Aliev, S. Bilmis, M. Savci2026-08-27
⚛️ phenomenology

Revisiting SU(5){\rm SU}(5) Yukawa Sectors Through Quantum Corrections

This paper demonstrates that minimal SU(5)SU(5) Grand Unified Theories, previously considered incompatible with low-energy fermion observables due to restrictive tree-level Yukawa structures, can successfully reproduce the charged and neutral fermion mass spectra and mixing angles when one-loop quantum corrections and scalar mass splittings are taken into account.

Saurabh K. Shukla2026-08-26✓ Author reviewed ⓘ
⚛️ high-energy experiments

Phenomenological implications of a class of non-invertible selection rules

This paper demonstrates that non-invertible fusion algebras generate a distinct class of selection rules with genuine organizing power in particle physics, showcasing their ability to produce unique scattering patterns in scalar extensions and solve the doublet-triplet splitting problem in supersymmetric flipped SU(5)SU(5) models by forbidding the μ\mu-term in ways impossible for ordinary Abelian symmetries.

Motoo Suzuki, Ling-Xiao Xu2026-08-26
⚛️ phenomenology

Complex heavy-quarkonium potential in an anisotropic collisional quark-gluon plasma

This paper computes the complex heavy-quark potential in an anisotropic quark-gluon plasma using kinetic theory with a collision kernel, demonstrating that while collisions minimally affect the real part of the potential, they are crucial for regularizing Weibel-induced singularities and significantly enhancing the imaginary part, thereby increasing quarkonium thermal widths and dissociation rates.

Manas Debnath, Lata Thakur, Najmul Haque2026-08-26
🔬 atomic physics

Effective Field Theory Perspective On King Non-linearity

This paper develops a systematic effective field theory framework to rigorously separate Standard Model nuclear effects from potential new physics in isotope shift measurements, revealing that the commonly used ⟨r2⟩2\langle r^2\rangle^2 term arises only at second-order perturbation theory and deriving a long-range 1/r41/r^4 potential from nuclear polarizability to enable more precise tests of King non-linearity and nuclear structure.

Benoît Assi, Sam Carey, Sebastian Jäger, Gabriel Lee, Gil Paz, Gilad Perez, Jure Zupan2026-08-26