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.

⚛️ high-energy experiments

Scattering meets absorption in dark matter detection

This paper investigates the interplay between dark matter scattering and light mediator absorption in direct detection experiments for Dirac and atomic dark matter models, identifying viable parameter spaces constrained by cosmology and astrophysics while highlighting the importance of distinguishing these signals to uncover the underlying physics.

Pieter Braat, Anh Vu Phan, Marieke Postma, Susanne Westhoff2026-02-27
⚛️ nuclear experiments

Global ΛΛ polarization in heavy-ion collisions at high baryon density

Using the three-fluid dynamics model, this study calculates global Λ\Lambda polarization in Au+Au collisions at high baryon densities (3–9 GeV), successfully reproducing STAR data at 3 GeV and predicting a broad maximum in polarization around 3–3.9 GeV while analyzing the specific contributions of thermal vorticity, meson fields, thermal shear, and the spin-Hall effect.

Yu. B. Ivanov2026-02-27
⚛️ high-energy experiments

Finding BSM Needles in Electromagnetic Haystacks at DUNE

This paper presents a detailed background mitigation analysis for the DUNE near detector, evaluating its capability to constrain or discover long-lived beyond-Standard-Model particles by investigating hard electromagnetic signatures in e+ee^+e^-, eγe^-\gamma, γ\gamma, and γγ\gamma\gamma final states while accounting for realistic neutrino-induced backgrounds and detector effects.

Vedran Brdar, Bhaskar Dutta, Wooyoung Jang, Doojin Kim, Ian M. Shoemaker, Zahra Tabrizi, Adrian Thompson, Jaehoon Yu2026-02-27
⚛️ phenomenology

A quantum information method for early universe with non-trivial sound speed

This study employs open quantum system methods and Arnoldi iterations to analyze Krylov complexity and entropy in the early universe, revealing that while non-trivial sound speed yields similar complexity trends to the standard case, it induces distinct entropy evolution and maximally chaotic behavior characterized by specific Lanczos coefficients.

Shi-Cheng Liu, Lei-Hua Liu, Bichu Li, Hai-Qing Zhang, Peng-Zhang He2026-02-27