⚛️ Category

hep-ex

2517 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.

🔬 physics

Comprehensive study of timing resolution in plastic scintillator detectors with wavelength-shifting fiber and silicon photomultiplier readout

This paper presents a comprehensive study of timing resolution in plastic scintillator detectors using wavelength-shifting fibers and silicon photomultipliers, combining a semi-analytical model with toy Monte Carlo and full Geant4 simulations to validate predictions and generate quantitative design maps for optimizing detector performance across various materials, components, and configurations.

Haohui Che, Guang Yang2026-07-17
⚛️ nuclear theory

Production Effects and Final-state Interactions in π1→3π\pi_1 \to 3\pi

This paper presents a unified Khuri-Treiman formalism that combines production effects and final-state interactions to analyze COMPASS's "freed-isobar" data on the π1(1600)→3π\pi_1(1600) \to 3\pi decay, successfully extracting the relative strengths and phases of production mechanisms to enable a future precise determination of the π1\pi_1 pole position.

D. Winney, S. Gonzàlez-Solís, M. Mikhasenko, Ł. Bibrzycki, C. Fernández-Ramírez, V. Mathieu, G. Montaña, A. Pilloni, L. (…)2026-07-17
⚛️ high-energy experiments

Summary of quality control (QC) of ATLAS18 production ITk strip sensors

This paper outlines the comprehensive, standardized quality control framework implemented across international institutes to validate the mechanical and electrical conformity of approximately 18,000 ATLAS18 silicon strip sensors for the HL-LHC ITk upgrade, reporting a 91% acceptance rate and detailing key performance metrics and anomaly case studies from over 590 production batches.

P. Federičováa, A. Affolder, K. Affolder, A. Awais, G. A. Beck, A. J. Bevan, Z. Chen, J. Dandoy, I. Dawson, V. Fadeyev (…)2026-07-17
⚛️ nuclear experiments

Relativistic corrections and high-energy resummation for exclusive heavy quarkonium photoproduction

This paper computes the O(v2)O(v^2) relativistic correction to the high-energy resummed coefficient function for exclusive heavy quarkonium photoproduction, finding that while the correction itself is negligible at the physical mass scale, it significantly improves prediction robustness by partially canceling the factorization scale dependence of the leading-order relativistic correction.

Maxim Nefedov2026-07-17
⚛️ high-energy experiments

Comparative study and optimization of SDHCAL hadronic energy reconstruction methods

This paper evaluates various hadronic energy reconstruction methods for the SDHCAL within the ILD detector using the APRIL Particle Flow Algorithm, finding that split and polynomial regression techniques offer the best balance of linearity and resolution while highlighting the potential of integrating precise timing information to further reduce PFA confusion.

Tanguy Pasquier, Gérald Grenier, Imad Laktineh2026-07-17
⚛️ lattice

Radiative corrections in neutral-current (anti)neutrino elastic scattering at GeV\text{GeV} energies I: Nucleon targets

This paper introduces radiative corrections within an effective field theory framework for neutral-current (anti)neutrino-nucleon elastic scattering at GeV energies, demonstrating that these corrections are comparable in magnitude to strange quark contributions and yield excellent agreement with BNL E734 and MiniBooNE experimental data.

Yi Chen, Oleksandr Tomalak, Bing-Song Zou2026-07-17
⚛️ high-energy experiments

The study of bulk damage of high gamma-irradiated n+n^+-in-pp silicon diodes

This study investigates the bulk damage in high-oxygen and varying-resistivity n+n^+-in-pp silicon diodes subjected to high-dose gamma irradiation, revealing a linear increase in leakage current, a non-monotonic evolution of full depletion voltage driven by acceptor removal, and a notable absence of annealing effects on electrical characteristics.

M. Mikestikova, P. Federicova, P. Gallus, R. Jirasek, J. Kozakova, J. Kroll, J. Kvasnicka, V. Latonova, I. Mandic, K. Ma (…)2026-07-17
⚛️ lattice

Next-to-next-to-leading order QCD corrections to pion (kaon)-induced exclusive Drell-Yan process

This paper calculates substantial and positive next-to-next-to-leading order (NNLO) QCD corrections for pion- and kaon-induced exclusive Drell-Yan processes within the generalized parton distribution framework, establishing the necessity of including these higher-order effects for reliable theoretical predictions to match future J-PARC experimental data.

Yu Jia, Bernard Pire, Qin-Tao Song, Guang Tang, Zhe-Yu Wang2026-07-17
⚛️ high-energy experiments

Electroweak diboson production in association with a high-mass dijet system in semileptonic final states from $pp$ collisions at s=13\sqrt{s} = 13 TeV with the ATLAS detector

Using 140 fb−1^{-1} of 13 TeV proton-proton collision data collected by the ATLAS detector, this paper reports the first observation of electroweak diboson production in association with a high-mass dijet system in semileptonic final states with a significance of 7.4σ\sigma, measures the corresponding cross-sections and signal strengths consistent with Standard Model predictions, and establishes the first ATLAS exclusion limits on anomalous quartic gauge couplings in this channel using a dimension-8 effective field theory.

ATLAS Collaboration2026-07-16