Hep-Ex explores the fascinating intersection where particle physics meets experimental reality. This field investigates how scientists build massive detectors and accelerate particles to test the fundamental laws of nature, turning abstract theories into measurable data. It is the rigorous process of searching for new particles or forces that could reshape our understanding of the universe, often requiring years of collaboration and engineering.

At Gist.Science, we ensure these discoveries become accessible to everyone. We process every new preprint in this category directly from arXiv, generating both plain-language explanations for curious readers and detailed technical summaries for specialists. Our goal is to bridge the gap between complex experimental results and public understanding without losing scientific nuance.

Below are the latest papers in Hep-Ex, freshly summarized and ready for you to explore.

⚛️ high-energy experiments

Implementation of the Martini-Ericson-Chanfray-Marteau RPA-based neutrino and antineutrino cross-section model in the GENIE neutrino event generator

This paper presents the first implementation and validation of the Martini-Ericson-Chanfray-Marteau RPA-based model for quasielastic and multinucleon neutrino and antineutrino interactions within the GENIE event generator, demonstrating reasonable agreement with experimental data from T2K and MicroBooNE.

Lavinia Russo, Marco Martini, Stephen Dolan, Laura Munteanu, Boris Popov, Claudio Giganti2026-01-23
⚛️ high-energy experiments

Search for Dark Photons between 16.96--19.52 μμeV with the HAYSTAC Experiment

The HAYSTAC experiment used Phase II data to exclude dark photon kinetic couplings above 4.90×10154.90 \times 10^{-15} in the 19.46–19.52 μ\mueV range and 2.90×10152.90 \times 10^{-15} in the 16.96–19.46 μ\mueV range, thereby ruling out a previously reported signal at 19.5 μ\mueV.

Xiran Bai, A. Droster, J. Echevers, Maryam H. Esmat, Sumita Ghosh, Eleanor Graham, H. Jackson, S. Jois, M. J. Jewell, Cl (…)2026-01-23
⚛️ high-energy experiments

Search potential for direct slepton pair production at the CEPC with s\sqrt{s} = 360 GeV

This paper presents a sensitivity study demonstrating that the CEPC operating at a center-of-mass energy of 360 GeV, with an integrated luminosity of 1.0 ab1^{-1}, has the potential to discover direct stau pair production up to masses of approximately 170 GeV and smuon pair production up to 178 GeV.

Feng Lyu, Jiarong Yuan, Huajie Cheng, Jianxiong Wang, Rabia Hameed, Da Xu, Xuai Zhuang2026-01-22