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

Imprints of primordial magnetic fields on the late-time Universe

This study uses high-resolution numerical simulations to demonstrate that during gravitational collapse, small-scale dynamo action driven by turbulence can significantly amplify primordial magnetic fields and alter their spectra, provided the Reynolds number is sufficiently high and the Jeans scale is resolved to capture the competition between dynamo growth and free-fall times.

Jennifer Schober, Molly Abramson, Sayan Mandal, Salome Mtchedlidze, Tina Kahniashvili2026-02-27
⚛️ phenomenology

Calculations of Di-Hadron Production via Two-Photon Processes in Relativistic Heavy-Ion Collisions

This paper establishes unified baseline predictions for di-hadron production (π+π\pi^{+}\pi^{-}, K+KK^{+}K^{-}, and ppˉp\bar{p}) in ultra-peripheral heavy-ion collisions at RHIC and LHC energies by applying the Equivalent Photon Approximation and e+ee^{+}e^{-} fusion data to guide future experimental measurements.

Luobing Wang, Xinbai Li, Zebo Tang, Xin Wu, Wangmei Zha2026-02-26
⚛️ phenomenology

When inverse seesaw meets inverse electroweak phase transition: a novel path to leptogenesis

This paper proposes a novel nonthermal leptogenesis mechanism where an inverse electroweak phase transition driven by TeV-scale vectorlike leptons triggers bubble expansion that produces these particles, whose subsequent CP-violating decays generate the observed baryon asymmetry while simultaneously explaining neutrino masses via the inverse seesaw mechanism.

Wen-Yuan Ai, Peisi Huang, Ke-Pan Xie2026-02-26
⚛️ nuclear experiments

Opportunities for Imaging Light Nuclei with a Second Interaction Region at the Electron-Ion Collider

This paper presents an exploratory study demonstrating how a proposed second interaction region at the Electron-Ion Collider, featuring enhanced forward acceptance, would enable the detection of intact light nuclei to map their spatial parton distributions through coherent diffractive processes.

Wan Chang, Elke-Caroline Aschenauer, Alexander Jentsch, Arjun Kumar, Zhoudunming Tu, Zhongbao Yin2026-02-26
⚛️ high-energy experiments

Parton distributions with higher twist and jet power corrections

This paper presents a global determination of parton distribution functions that incorporates higher twist corrections for deep-inelastic scattering and linear power corrections for LHC jet data using a theory covariance formalism, demonstrating improved data description and perturbative convergence for key phenomenological observables like Higgs production and αs\alpha_s determination.

Richard D. Ball, Amedeo Chiefa, Roy Stegeman2026-02-26
⚛️ 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