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

Next-to-leading order analysis of J/ψ+γJ/ψ+ γ production in photon-photon collisions at CEPC

This paper presents a next-to-leading order NRQCD analysis of J/ψ+γJ/\psi+\gamma production in photon-photon collisions at the CEPC, demonstrating that the direct-photon channel dominates with negligible resolved contributions and that precise polarization measurements in this clean environment can effectively test LDME universality and resolve longstanding polarization puzzles.

Ying-Zhao Jiang, Zhan Sun2026-02-26
⚛️ phenomenology

Lepton flavor violation in Higgs boson decays at the HL-LHC

This paper investigates the discovery potential of lepton flavor-violating Higgs boson decays within a Froggatt-Nielsen framework at the High-Luminosity LHC, projecting that the h→eμh \to e\mu and h→τμh \to \tau\mu channels could achieve a 5σ5\sigma discovery significance with an integrated luminosity of 1000 fb−1^{-1}, while the h→τeh \to \tau e channel remains inaccessible.

M. A. Arroyo-Ureña, E. A. Herrera-Chacón, Iran Melendez-Hernández, S. Rosado-Navarro2026-02-26
⚛️ nuclear theory

Unified study of Bs0→X(3872)π+π−(K+K−)B_s^0 \to X(3872) π^+π^- (K^+ K^-) and Bs0→ψ(2S)π+π−(K+K−)B_s^0 \to ψ(2S) π^+π^- (K^+ K^-) processes

This paper presents a unified theoretical description of experimental data for Bs0B_s^0 decays into X(3872)X(3872) and ψ(2S)\psi(2S) accompanied by pion or kaon pairs, utilizing unitary and analytic final-state interactions to reveal universal coupling patterns, a distinct non-charmonium nature for the X(3872)X(3872), and the significant role of the f0(1500)f_0(1500) resonance while predicting related branching fraction ratios and invariant mass distributions.

Yun-Hua Chen2026-02-26
⚛️ phenomenology

Kaon T-even transverse-momentum-dependent distributions and form factors in a self-consistent light-front quark model

This paper presents a self-consistent light-front quark model based on the Bakamjian--Thomas construction to calculate kaon electromagnetic and scalar form factors, as well as unpolarized T-even transverse-momentum-dependent distributions and their collinear PDFs, demonstrating that enforcing four-momentum conservation via a uniform invariant mass implementation yields unique, current-component-independent observables and reveals distinct behaviors between direct and mass-factored scalar definitions.

Yongwoo Choi, Ahmad Jafar Arifi, Ho-Meoyng Choi, Chueng-Ryong Ji2026-02-26
⚛️ high-energy experiments

Coherent Quantum Evaluation of Collider Amplitudes for Effective Field Theory Constraints

This paper presents a hybrid quantum-classical framework that computes leading-order helicity amplitudes for e+e−→ℓ+ℓ−e^+e^-\to \ell^+\ell^- scattering on gate-based quantum hardware to derive Standard Model and Effective Field Theory constraints consistent with precision collider data.

Yacine Haddad, Kaidi Xu, Vincent Croft, Jad C. Halimeh, Michele Grossi2026-02-26