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

Infrared behavior of the photon yield in nonlinear Compton scattering

This paper investigates the infrared behavior of photon yields in nonlinear Compton scattering, deriving analytical expressions for both idealized plane-wave fields—where it resolves the logarithmic divergence in unipolar cases via formation length arguments—and realistic tightly-focused laser beams, where it quantifies the leading-order quantum corrections to the classical angular distribution.

Antonino Di Piazza, Giulio Audagnotto2026-05-25
⚛️ phenomenology

Semileptonic decay of Λb0→Λc(2860)+/Λc(2625)+ℓ−ν‾ℓ\Lambda_b^0 \to \Lambda_c (2860)^+/\Lambda_c(2625)^+\ell^-\overline{\nu}_\ell within QCD light-cone sum rules

This paper utilizes QCD light-cone sum rules to calculate transition form factors and predict the branching fractions for the semileptonic decays Λb0→Λc(2860)+ℓ−ν‾ℓ\Lambda_b^0 \to \Lambda_c(2860)^+\ell^-\overline{\nu}_\ell and Λb0→Λc(2625)+ℓ−ν‾ℓ\Lambda_b^0 \to \Lambda_c(2625)^+\ell^-\overline{\nu}_\ell, with the latter's result validating the method against experimental data to provide theoretical guidance for future measurements of the former.

Hui-Hui Duan, Jia-Bao Feng, Feng-Mei Liu, Qin Chang2026-05-25
⚛️ high-energy experiments

Correlated b→sb \to s and s→ds \to d Rare Semileptonic Transitions in the Standard Model Effective Field Theory

This paper presents a comprehensive SMEFT analysis of correlated b→sb \to s and s→ds \to d rare semileptonic transitions, demonstrating that while complex left-handed four-fermion operators and electroweak corrections explain b→sb \to s anomalies, flavor-universal couplings are ruled out by kaon data, necessitating Minimal Flavor Violation frameworks like U(3)5U(3)^5 or U(2)5U(2)^5 to reconcile predictions with experimental bounds while predicting observable CP asymmetries.

Nilakshi Das, Rusa Mandal, Praveen S Patil2026-05-25
⚛️ high-energy experiments

Charged long-lived particles in the GMSB scenario at the Future Circular Collider (FCC-ee)

This paper presents a phenomenological study of charged long-lived staus predicted by the gauge-mediated supersymmetry breaking model, demonstrating their potential for discovery via kinked tracks and displaced vertices at the Future Circular Collider (FCC-ee) for lifetimes ranging from 20 cm to 20 m.

Soumyaa Vashishtha, Maximilian Emanuel Goblirsch-Kolb, Isabell Melzer-Pellmann2026-05-25
⚛️ phenomenology

Probing radiative electroweak symmetry breaking with colliders and gravitational waves

This paper presents a comprehensive phenomenological study of radiative electroweak symmetry breaking, demonstrating how its characteristic logarithmic potential leads to a light scalar boson and first-order phase transitions, thereby enabling the exploration of conformal symmetry breaking scales up to 105–10810^5\text{--}10^8 GeV through combined future collider and gravitational wave observations.

Wei Liu, Ke-Pan Xie2026-05-22