hep-ex papers | Gist.Science

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.

⚛️ nuclear experiments

Insights into the exotic charged states $Z_b(10610)$ and $Z_b(10650)$ from their photoproduction off nuclei

This paper investigates the photoproduction of the exotic charged states $Z_b(10610)$ and $Z_b(10650)$ off nuclei using a collision model based on the nuclear spectral function, demonstrating that absolute and relative observables calculated for various internal structure scenarios (compact tetraquarks, molecules, and mixtures) are sensitive enough to distinguish their nature in future high-luminosity electron-ion collider experiments.

E. Ya. Paryev2026-02-03

⚛️ high-energy experiments

Position: The Need for Ultrafast Training

This paper advocates for a paradigm shift from static inference-only FPGA accelerators to ultrafast on-chip learning systems that enable real-time model adaptation within the same deterministic, sub-microsecond datapath as inference, thereby empowering closed-loop control in high-frequency scientific and industrial environments.

Duc Hoang2026-02-03

⚛️ high-energy experiments

Observation of a family of all-charm tetraquarks

Using an expanded dataset from the CMS detector, researchers observed three statistically significant all-charm tetraquark candidates (X(6600), X(6900), and X(7100)) in the J/ψJ/ψ mass spectrum, whose interference patterns and mass systematics strongly support their interpretation as radial excitations of a specific diquark-antidiquark configuration.

CMS Collaboration2026-02-03

⚛️ high-energy experiments

Vision Calorimeter for Anti-neutron Reconstruction: A Baseline

This paper introduces Vision Calorimeter (ViC), a deep learning-based baseline method that converts electromagnetic calorimeter energy distributions into 2-D images to significantly improve anti-neutron incident position reconstruction and, for the first time, enable the measurement of their momentum.

Hongtian Yu, Yangu Li, Mingrui Wu, Letian Shen, Yue Liu, Yunxuan Song, Qixiang Ye, Xiao-Rui Lyu, Yajun Mao, Yangheng Zhe (…)2026-02-02

⚛️ phenomenology

Conceptual Design of the Muonium-to-Antimuonium Conversion Experiment (MACE)

This paper presents the theoretical framework and detailed experimental design of the Muonium-to-Antimuonium Conversion Experiment (MACE), which aims to discover or constrain charged lepton flavor violation by searching for muonium-to-antimuonium conversion with a sensitivity of approximately $10^{-13}$ .

Ai-Yu Bai, Hanjie Cai, Chang-Lin Chen, Siyuan Chen, Xurong Chen, Yu Chen, Weibin Cheng, Ling-Yun Dai, Rui-Rui Fan, Li Go (…)2026-02-02

⚛️ high-energy experiments

Fast Low Energy Reconstruction using Convolutional Neural Networks

This paper presents the development and application of convolutional neural networks to improve the reconstruction of low-energy neutrino events in the IceCube-DeepCore detector, enabling precise measurements of neutrino oscillation parameters by estimating key properties such as energy, direction, and interaction vertex.

IceCube Collaboration2026-02-02

⚛️ high-energy experiments

Measurement of time-dependent $CP$ asymmetries in $B^0 \to K_{\rm S}^0 \: π^{+} π^{-} γ$ decays at Belle and Belle II

Using combined data from the Belle and Belle II experiments, this paper reports the first measurement of time-dependent $CP$ asymmetry parameters ( $C$ , $S$ , $S^+$ , and $S^-$ ) in $B^0 \to K_{\rm S}^0 \pi^+ \pi^- \gamma$ decays, yielding results consistent with zero within uncertainties.

Belle, Belle II Collaborations, :, M. Abumusabh, I. Adachi, L. Aggarwal, H. Ahmed, Y. Ahn, H. Aihara, N. Akopov, S. Algh (…)2026-02-02

⚛️ high-energy experiments

Beam-test evaluation of pre-production Low Gain Avalanche Detectors for the ATLAS High Granularity Timing Detector

This paper presents beam-test results demonstrating that pre-production Low Gain Avalanche Detectors for the ATLAS High Granularity Timing Detector meet all performance requirements, including charge collection, time resolution, and hit efficiency, even after neutron irradiation simulating end-of-life High Luminosity-LHC conditions.

A. Aboulhorma, M. Ait Tamlihat, H. M. Alfanda, O. Atanova, N. Atanov, I. Azzouzi, J. Barreiro Guimarães da Costa, T. Bea (…)2026-02-02

⚛️ high-energy experiments

Neutrino-argon cross-section measurements from the MicroBooNE experiment

This proceeding presents an overview of recent MicroBooNE results on neutrino-argon cross-section measurements across inclusive, CC0 $\pi$ , and rare channels, utilizing advanced reconstruction tools to benchmark interaction models and constrain backgrounds for future liquid argon neutrino experiments like DUNE.

Liang Liu2026-02-02

⚛️ high-energy experiments

Three-dimensional squeezing of optically levitated nanospheres

This paper proposes a protocol to achieve three-dimensional quantum squeezing of optically levitated nanospheres via frequency jumps, demonstrating that approximately 10 dB of squeezing is feasible with current technology to enable impulse detection beyond the standard quantum limit despite decoherence.

Giacomo Marocco, David C. Moore, Daniel Carney2026-02-02

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hep-ex

Insights into the exotic charged states Zb(10610)Z_b(10610)Zb​(10610) and Zb(10650)Z_b(10650)Zb​(10650) from their photoproduction off nuclei

Position: The Need for Ultrafast Training

Observation of a family of all-charm tetraquarks

Vision Calorimeter for Anti-neutron Reconstruction: A Baseline

Conceptual Design of the Muonium-to-Antimuonium Conversion Experiment (MACE)

Fast Low Energy Reconstruction using Convolutional Neural Networks

Measurement of time-dependent CPCPCP asymmetries in B0→KS0 π+π−γB^0 \to K_{\rm S}^0 \: π^{+} π^{-} γB0→KS0​π+π−γ decays at Belle and Belle II

Beam-test evaluation of pre-production Low Gain Avalanche Detectors for the ATLAS High Granularity Timing Detector

Neutrino-argon cross-section measurements from the MicroBooNE experiment

Three-dimensional squeezing of optically levitated nanospheres

Insights into the exotic charged states $Z_b(10610)$ and $Z_b(10650)$ from their photoproduction off nuclei

Measurement of time-dependent $CP$ asymmetries in $B^0 \to K_{\rm S}^0 \: π^{+} π^{-} γ$ decays at Belle and Belle II