⚛️ Category

hep-ex

2527 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.

⚛️ high-energy experiments

Analysis note: Long-range near-side correlation in e+e−e^+e^- with WW-boson-pair events at 183-209 GeV with ALEPH archived data

Using archived ALEPH data from LEP2, this study analyzes two-particle angular correlations in high-multiplicity e+e−e^+e^- collisions at 183–209 GeV and reports the observation of a ridge-like modulation and a sign change in harmonic coefficients for multiplicities above 30–50, which deviate from Monte Carlo predictions and suggest the emergence of long-range near-side correlations potentially linked to W+W−W^+W^- production.

Tzu-An Sheng, Yu-Chen Chen, Yi Chen, Kyle Sun, Jason Chiu, Michael Peters, Marcello Maggi, Austin Baty, Anthony Badea, C (…)2026-06-23
⚛️ phenomenology

Analytic results for heavy-quark contributions to charged-current DIS at NNLO

This paper presents analytic next-to-next-to-leading-order QCD corrections for heavy-quark production in charged-current deep-inelastic scattering with exact charm mass dependence, expressing two-heavy-quark contributions via Goncharov polylogarithms and three-heavy-quark contributions via elliptic structures and rapidly convergent expansions for efficient numerical evaluation.

Fabrizio Caola, Giulio Gambuti, Martin Link2026-06-23
⚛️ phenomenology

The feasibility of single Λ{\Lambda} production via ℓ−{\ell}^{-} ++ pp →{\to} Λ{\Lambda} ++ νℓ{\nu}_{\ell} at e+e−e^{+}e^{-} colliders

This paper investigates the feasibility of observing single Λ\Lambda hyperon production via lepton-nucleon deep inelastic scattering at e+e−e^{+}e^{-} colliders by calculating cross sections with various theoretical form factors, ultimately highlighting significant experimental challenges and theoretical uncertainties while suggesting that anomalous observations could signal new physics.

Yueling Yang, Peisheng Tian, Shuangshi Fang, Bingbing Yang, Junfeng Sun2026-06-23
⚛️ high-energy experiments

Search for the charged lepton flavor violating decay η→e±μ∓\eta \to e^{\pm}\mu^{\mp}

Using a dataset of approximately 10.1×10910.1 \times 10^9 J/ψJ/\psi events collected by the BESIII detector, researchers searched for the charged lepton flavor violating decay η→e±μ∓\eta \to e^{\pm}\mu^{\mp} and, finding no signal, established a new upper limit on its branching fraction of 6.8×10−76.8 \times 10^{-7} at the 90% confidence level, improving the previous best limit by one order of magnitude.

M. Ablikim, M. N. Achasov, P. Adlarson, X. C. Ai, C. S. Akondi, R. Aliberti, A. Amoroso, Q. An, Y. H. An, Y. Bai, O. Bak (…)2026-06-23
⚛️ high-energy experiments

Ferromagnetic broadband sensing of axionlike dark matter

This paper presents a high-bandwidth levitated magnetometer utilizing a double-resonance mode and hybrid ferromagnetic components to achieve a magnetic-field resolution of 0.7 fT, thereby establishing new direct limits on axionlike dark matter in the 40–3000 Hz frequency range that improve upon previous results by over four orders of magnitude.

Chenhao Peng, Dmitry Budker, Yuanning Gao, Xinran Li, Jia Liu, Wei Ji, Jing Shu, Zhenxing Tang, Liheng Wang2026-06-23
⚛️ high-energy experiments

Observations of Low-Energy-Electron Production and Experimental Characterization of the Test-Mass Charging Process in the LISA Gravitational Reference Sensor with the BART Experiment

This paper reports on the BART experiment, which uses a particle accelerator to directly test the hypothesis that low-energy electron emission is a key mechanism influencing test mass charging in the LISA Gravitational Reference Sensor by measuring proton-induced charging as a function of electrostatic potential.

Francesco Dimiccoli, Francesco Venturelli, Valerio Ferroni, Antonella Cavalleri, Teodoro Klaser, Matteo Tomasi, Davide D (…)2026-06-23
⚛️ high-energy experiments

Probing Nuclear Effects with Transverse Kinematic Imbalance in Muon-neutrino Induced Charged-Current π0\pi^0 Production on Argon with the MicroBooNE Detector

Using the MicroBooNE detector, this paper presents the first measurement of muon-neutrino-induced charged-current π0\pi^0 production on argon via transverse kinematic imbalance variables, revealing that current theoretical models fail to simultaneously reproduce all observed kinematic observables.

MicroBooNE collaboration, P. Abratenko, D. Andrade Aldana, J. Asaadi, A. Ashkenazi, S. Balasubramanian, B. Baller, A. Ba (…)2026-06-23