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

Heavy quark mass dependence of the ΛQ\Lambda_Q light-cone distribution amplitude in QCD

This paper derives an analytical solution for the heavy quark mass dependence of the ΛQ\Lambda_Q baryon's light-cone distribution amplitude by solving a first-order differential equation within a factorization framework that incorporates renormalon corrections, thereby providing a crucial tool for extrapolating lattice QCD results to the physical bottom quark mass.

Yu-Ji Shi, Ji Xu, Shuai Zhao2026-07-21
⚛️ phenomenology

Analysis of the hidden-charm pentaquark candidates in the J/ψΣ∗J/\psi \Sigma^* mass spectrum via the QCD sum rules

This paper employs QCD sum rules to investigate the spectroscopy of diquark-diquark-antiquark type uusccˉuusc\bar{c} pentaquark states in the light-flavor 10\mathbf{10} representation with quantum numbers IJP=112−IJ^{P}=1{\frac{1}{2}}^-, 132−1{\frac{3}{2}}^-, and 152−1{\frac{5}{2}}^-, while proposing the experimental search for these candidates via the decay chain Σb+→Pcs+ ϕ→J/ψΣ∗+ ϕ\Sigma_b^+\to P_{cs}^+\,\phi \to J/\psi \Sigma^{*+}\, \phi.

Zhi-Gang Wang, Yang Liu2026-07-21
⚛️ phenomenology

Vector mesons leading-twist longitudinal distribution amplitudes and related semi-leptonic decays within QCD sum rules

This paper employs an improved QCD sum rule scheme to calculate the leading-twist longitudinal distribution amplitudes and Gegenbauer moments for light vector mesons (ρ,K∗,ϕ\rho, K^\ast, \phi) up to the tenth order, subsequently utilizing these results to determine their distribution behaviors and recalculate the transition form factors and branching ratios for related semi-leptonic DD and DsD_s meson decays.

Wan-Bing Luo, Ru-Meng Pan, Ya-Xiong Wang, Tao Zhong2026-07-21
⚛️ high-energy theory

The next-to-next-to-leading order BFKL eigenvalue at odd conformal spin in planar N=4 super Yang-Mills

This paper presents the exact closed-form expression for the three-loop (next-to-next-to-leading order) BFKL eigenvalue in planar N=4 super Yang-Mills theory at odd conformal spins, derived via direct Mellin extraction from the Caron-Huot-Herranen integrand and validated against Quantum Spectral Curve results up to spin 91.

Alex Prygarin, Claudelle Capasia Madjuogang Sandeu2026-07-21
⚛️ phenomenology

Benchmarking wall velocities in cosmological phase transitions: Fluid Ansatz and WallGo

This paper benchmarks two computational approaches for determining bubble wall velocities in cosmological phase transitions, finding that while the fluid Ansatz and WallGo agree for mild transitions, they diverge when scattering processes are included or transitions become strong, highlighting the need for higher-precision semi-classical computations and treatments beyond the WKB approximation for future gravitational wave observatories.

Gláuber C. Dorsch, Marek Lewicki, Daniel A. Pinto2026-07-21