⚛️ Category

hep-ex

1387 papers

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.

Three-dimensional recoil-electron reconstruction using combined optical imaging and waveform readout for electron-tracking Compton cameras

This study proposes and demonstrates a practical method for reconstructing three-dimensional recoil-electron directions in electron-tracking Compton cameras by combining high-resolution 2D optical imaging, 1D waveform readout, and deep learning, achieving improved angular and starting-point resolution without the data volume constraints of full 3D readout systems.

Tomonori Ikeda, Tatsuya Sawano, Naomi Tsuji, Yoshitaka Mizumura2026-04-22⚛️ hep-ex

RL-ABC: Reinforcement Learning for Accelerator Beamline Control

The paper introduces RLABC, an open-source Python framework that automates the conversion of standard particle accelerator beamline configurations into reinforcement learning environments, enabling efficient, expert-minimal optimization of beam transmission through a general Markov decision process formulation validated on a VEPP-5 derived test case.

Anwar Ibrahim, Fedor Ratnikov, Maxim Kaledin, Alexey Petrenko, Denis Derkach2026-04-22⚛️ hep-ex

QCD-factorization amplitudes from flavour symmetries: beyond the $SU(3)$ symmetric case

This paper presents a data-driven analysis of charmless non-leptonic B→PPB \to PP decays incorporating $SU(3)$ flavor-breaking effects, which yields QCD-factorization amplitudes consistent with dynamical predictions and finds no evidence for anomalously large annihilation amplitudes, thereby offering insights into long-standing flavor puzzles.

Wen-Sheng Fang, Tobias Huber, Xin-Qiang Li, Eleftheria Malami, Gilberto Tetlalmatzi-Xolocotzi2026-04-22⚛️ hep-ex

Radon-induced backgrounds in the NEXT-100 experiment

The NEXT-100 experiment's first low-background run quantified radon-induced backgrounds, revealing a low internal 222^{222}Rn activity and demonstrating that topological event selection reduces the resulting background index in the neutrinoless double-beta decay region of interest to one order of magnitude below the total radiogenic expectation, confirming the effectiveness of the facility's radon abatement system.

NEXT Collaboration, C. Cortes-Parra, G. Martínez-Lema, P. Novella, H. Almazán, V. Álvarez, L. Arazi, I. J. Arnquist, F. Auria-Luna, S. Ayet, Y. Ayyad, C. D. R. Azevedo, F. Ballester, J. E. Barce (…)2026-04-22⚛️ hep-ex

Measurement of forward photon production cross-section in pp collisions at s\sqrt{s} = 510 GeV with RHICf detector

This paper reports the inclusive differential production cross-section of forward photons in proton-proton collisions at s\sqrt{s} = 510 GeV measured by the RHICf experiment, finding that the results are consistent with Feynman scaling and various hadronic interaction models despite some predicted energy dependencies.

O. Adriani, E. Berti, L. Bonechi, R. D'Alessandro, Y. Goto, B. Hong, Y. Itow, K. Kasahara, M. H. Kim, Y. Kim, J. H. Lee, S. Lee, T. Ljubicic, H. Menjo, I. Nakagawa, A. Ogawa, S. Oh, K. Ohashi, R. Pak (…)2026-04-21⚛️ hep-ex