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.

Enabling users to work sustainably on shared institute computing resources

The VISPA project promotes sustainable computing on a mid-scale physics cluster by implementing user-centric tools—such as per-job energy monitoring, "green-window" scheduling based on renewable energy availability, and voluntary carbon footprint reporting—to foster environmental awareness and reduce emissions through behavioral change.

Niclas Eich, Johannes Erdmann, Martin Erdmann, Benjamin Fischer, Paul Gilles, Tim Hauptreif, Jan Kelleter2026-04-28⚛️ hep-ex

Passage of particles through matter and the effective straggling-function: High-fidelity accelerated simulation via Physics-Informed Machine Learning

The paper introduces PHIN-GAN, a physics-informed generative adversarial network that utilizes analytical probability density functions of the Landau straggling function to provide high-fidelity, scalable, and computationally efficient simulations of particle-matter interactions compared to traditional methods like GEANT4.

Oleksandr Borysov, Rotem Dover, Eilam Gross, Nilotpal Kakati, Noam Tal Hod2026-04-28⚛️ hep-ex

Search for heavy resonances decaying into two Higgs bosons in the bbˉτ+τ\mathrm{b}\bar{\mathrm{b}}\,\tau^{+}\tau^{-} final state in proton-proton collisions at s=13 TeV\sqrt{s}=13~\text{TeV} with the CMS detector

Using 138 fb1138\text{ fb}^{-1} of CMS data collected at s=13 TeV\sqrt{s}=13\text{ TeV}, this study searches for heavy narrow-width resonances decaying into two Higgs bosons via the bbˉτ+τ\mathrm{b}\bar{\mathrm{b}}\,\tau^{+}\tau^{-} final state, finding no significant excess and setting the most sensitive LHC limits to date for masses between $1.4$ and 4.5 TeV4.5\text{ TeV}.

Ganesh Parida (on behalf of the CMS collaboration)2026-04-28⚛️ hep-ex

Initial Performance of the E320 Tracker

This paper demonstrates the successful initial performance of a prototype five-layer ALPIDE-based tracking detector at the SLAC FACET-II facility, which successfully measured positron signal rates using Bremsstrahlung conversion as a proxy for the nonlinear Breit-Wheeler process, even under extreme background hit densities.

Oleksandr Borysov, Sébastien Corde, Gal Evenzur, Alexander Knetsch, Alon Levi, Sebastian Meuren, Nathaly Nofech-Mozes, Ivan Rajkovic, Sheldon Rego, David A. Reis, Arka Santra, Tania Smorodnikova, Doug (…)2026-04-28⚛️ hep-ex

Development and Performance Study of Vertical GaN α\alpha-Particle Detector with High Energy Resolution

This study develops a vertical homoepitaxial GaN α\alpha-particle detector featuring an ultrathin dead layer and guard-ring structure that achieves high energy resolution, while using Geant4 simulations to identify depletion-width nonuniformity as the primary cause of the low-energy tail phenomenon.

Minjie Ye, Yuzi Yang, Jiangtao Wei, Weilong Qin, Hao Hong, Dong Han, Jianping Ni, Zhiyi Liu, Po-Chung Huang, Cheng-Chang Yu, Chao-Yi Fang, Entsai Lin, Zewen Liu, Shaomin Chen2026-04-28⚛️ hep-ex

Design of the DUNE horizontal drift far detector charge readout electronics and performance in ProtoDUNE-HD

This paper describes the design of the custom cryogenic charge readout electronics for the DUNE horizontal drift far detector and presents their performance results based on data from the ProtoDUNE-HD prototype operated at CERN.

DUNE Collaboration, S. Abbaslu, F. Abd Alrahman, A. Abed Abud, R. Acciarri, L. P. Accorsi, M. A. Acero, M. R. Adames, G. Adamov, M. Adamowski, K. Adhikari, C. Adriano, K. Agudelo-Jaramillo, F. Akbar (…)2026-04-28⚛️ hep-ex