⚛️ Category

hep-ex

1442 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.

Centrality dependence of charged-hadron pseudorapidity distributions in oxygen-oxygen collisions at sNN\sqrt{s_\mathrm{NN}} = 5.36 TeV

The CMS experiment reports the first measurement of charged-hadron pseudorapidity distributions in oxygen-oxygen collisions at sNN\sqrt{s_\mathrm{NN}} = 5.36 TeV, revealing that while the particle density per participating nucleon in central collisions matches that of lead-lead collisions, the data exhibit deviations from simple scaling laws that highlight the significant role of collision geometry and finite-size effects in light ion systems.

CMS Collaboration2026-06-02⚛️ nucl-ex

New Windows on Heavy Dark Matter: Mineral Melt Modelling and X-Ray Readout for Muscovite Mica

This paper proposes a novel framework for detecting heavy composite dark matter using muscovite mica as a paleodetector, combining Sedov-Taylor thermal spike modeling and SRIM/TRIM simulations with a new rapid X-ray fluorescence readout method to establish projected sensitivities and critique previous exclusion limits.

Yilda Boukhtouchen, Joseph Bramante, Andrew Buchanan, Alexander Hayes, Matthew Leybourne, Jennika McIntosh, Anupam Ray, Aaron Shugar2026-06-02⚛️ hep-ex

First Measurement of Correlated Charge Noise in Superconducting Qubits at an Underground Facility

This paper reports the first measurement of space- and time-correlated charge noise in superconducting qubits at an underground facility, demonstrating that while shielding and depth significantly reduce the rate of radiation-induced charge jumps compared to surface tests, the observed rate remains higher than expected from ambient gamma reduction alone, yet allows for over 22 hours of operation with zero correlated jumps at millimeter scales.

G. Bratrud, S. Lewis, K. Anyang, A. Colón Cesaní, T. Dyson, H. Magoon, D. Sabhari, G. Spahn, G. Wagner, R. Gualtieri, N. A. Kurinsky, R. Linehan, R. McDermott, S. Sussman, D. J. Temples, S. Uemura, C. (…)2026-06-01⚛️ hep-ex

From Qubits to Couplings: A Hybrid Quantum Machine Learning Framework for LHC Physics

This paper proposes a Hybrid Quantum Machine Learning framework that integrates parameterized quantum circuits with classical neural networks to significantly enhance the sensitivity of double Higgs boson searches in the HH→bbˉγγHH \to b\bar{b}\gamma\gamma channel at the LHC, outperforming both state-of-the-art classical and purely quantum models in constraining production cross-sections and coupling parameters.

Marwan Ait Haddou, Mohamed Belfkir, Salah Eddine El Harrauss2026-06-01⚛️ hep-ex

Performance of an LYSO-Based Active Converter for a Conversion Spectrometer aiming for 52.8 MeV photon detection in Future μ+→e+γ\mu^+ \to e^+ \gamma Search Experiments

This paper reports the successful development and test-beam validation of a prototype LYSO-based active converter for future μ+→e+γ\mu^+ \to e^+ \gamma experiments, demonstrating a time resolution of 25 ps and a light yield of 10410^4 photoelectrons that significantly exceed the design requirements for detecting 52.8 MeV photons.

Sei Ban, Lukas Gerritzen, Fumihito Ikeda, Toshiyuki Iwamoto, Wataru Ootani, Atsushi Oya, Rei Sakakibara, Rintaro Yokota2026-06-01⚛️ hep-ex

Structural dissection of hadronic molecules: The D(∗)Kˉ(∗)D^{(*)}\bar{K}^{(*)} family under QCD light-cone sum rules

Using QCD light-cone sum rules, this study calculates the static electromagnetic properties of D(∗)Kˉ(∗)D^{(*)}\bar{K}^{(*)} molecular tetraquark candidates, revealing that their magnetic moments are dominated by light quarks while their near-spherical charge distributions and suppressed charm contributions provide quantitative benchmarks for distinguishing molecular structures from compact multiquark interpretations.

Ulaş Özdem2026-06-01⚛️ hep-lat

Characterizing the energy resolution of the MicroBooNE LArTPC at the MeV scale using monoenergetic features of 208^{208}Tl decays

This paper presents the first-ever measurement of energy resolution in a Liquid Argon Time Projection Chamber (LArTPC) at the MeV scale, utilizing monoenergetic signals from 208^{208}Tl decays in the MicroBooNE detector to determine a resolution of approximately 7.52% and validate simulation predictions.

MicroBooNE collaboration, P. Abratenko, D. Andrade Aldana, J. Asaadi, A. Ashkenazi, S. Balasubramanian, B. Baller, A. Barnard, G. Barr, D. Barrow, J. Barrow, V. Basque, J. Bateman, B. Behera, O. Benev (…)2026-06-01⚛️ hep-ex