⚛️ Category

hep-ph

5500 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.

⚛️ phenomenology

Elastic Form Factors of Axial-Vector Mesons: A Contact Interaction Exploration

This paper employs a symmetry-preserving contact interaction within the Schwinger-Dyson and Bethe-Salpeter framework to calculate the elastic form factors, charge radii, magnetic moments, and quadrupole moments of various axial-vector mesons, revealing that their electric form factors cross zero at lower values than vector mesons and that including an anomalous magnetic moment term significantly impacts their magnetic and quadrupole properties.

R. J. Hernández-Pinto, L. X. Gutiérrez-Guerrero, M. A. Bedolla, J. P. Uribe-Ramírez, A. Bashir2026-05-06
⚛️ phenomenology

Search for Long-Lived Dark Photons from Dark Radiation at the LHC

This paper proposes a novel production mechanism for long-lived dark photons at the LHC via dark radiation from dark matter in ZZ decays, demonstrating that this channel can dominate over conventional sources and enable dedicated detectors like FASER2, FACET, and MATHUSLA to probe previously inaccessible regions of parameter space consistent with the observed dark matter relic abundance.

Chuan-Ren Chen, Van Que Tran2026-05-06
⚛️ phenomenology

Self-Interaction Bounds on Ultralight Dark Matter Couplings to Matter

This paper demonstrates that quantum loop corrections inevitably link ultralight dark matter's self-interactions to its couplings with matter, allowing stringent astrophysical bounds on repulsive self-interactions to robustly constrain linear couplings to neutrinos and quadratic couplings to electrons and light quarks, often surpassing existing limits from equivalence-principle tests.

Mohammad Aghaie, Shao-Ping Li2026-05-06
⚛️ phenomenology

Role of a0(1710)a_0(1710) in the J/ψ→ρ+ρ−ωJ/\psi\to\rho^+\rho^-\omega and J/ψ→γρ0ωJ/\psi\to\gamma\rho^0\omega reactions

This paper predicts that the scalar meson a0(1710)a_0(1710), dynamically generated through final-state interactions, will manifest as distinct peaks in the invariant mass distributions of ρω\rho\omega pairs in both the strong decay J/ψ→ρ+ρ−ωJ/\psi\to\rho^+\rho^-\omega and the radiative decay J/ψ→γρ0ωJ/\psi\to\gamma\rho^0\omega, offering a promising avenue for future experimental verification and precise characterization by facilities like BESIII, Belle II, and STCF.

Wen-Tao Lyu, Luis Roca, Eulogio Oset2026-05-06
⚛️ phenomenology

Dark Matter Production from Bubble Collisions during a First-Order Phase Transition at the End of Inflation

This paper demonstrates that a first-order phase transition at the end of inflation, occurring in a spectator scalar sector dominated by Coleman-De Luccia tunneling, can successfully generate the observed dark matter abundance through a combination of direct particle production from bubble collisions and the subsequent decay of spectator particles.

Zihong Cheng, Fa Peng Huang2026-05-06
⚛️ phenomenology

Properties and implications of the four-loop non-singlet splitting functions in QCD

This paper presents and validates the analytic all-NN expressions for four-loop non-singlet splitting functions in QCD, confirming their consistency with fixed-NN results and utilizing them to finalize analytical forms for the four-loop gluon virtual anomalous dimension and next-to-next-to-next-to-leading logarithmic threshold-resummation coefficients, while highlighting a new structure in small-xx quartic-Casimir contributions.

S. Moch (Hamburg U., Inst. Theor. Phys. II), A. Vogt (Liverpool U., Dept. Math.)2026-05-06