2591 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.
This paper presents recent ALICE measurements from July 2025 LHC runs involving proton-oxygen, oxygen-oxygen, and neon-neon collisions, detailing charged-particle pseudorapidity densities, flow coefficients, and neutral pion suppression to advance the understanding of particle production and collective phenomena in small collision systems.
This paper calculates next-to-leading order nuclear matrix elements for two-neutrino double-beta decay to excited states in key isotopes using the nuclear shell model, finding that while NLO corrections are typically small, they can become significant due to leading-order cancellations, and that nuclear deformation and seniority structure critically influence the predicted half-lives.
This paper extends the semileptonic sum rule to include strange baryon and meson decays, quantifies the impact of SU(3) symmetry breaking to confirm it remains within experimental uncertainties, and proposes new predictive sum rules to rigorously test the consistency of processes.
Using the ATLAS detector, this study presents a high-precision measurement of prompt charged-particle production in proton-oxygen collisions at TeV, providing data that significantly improves the modeling of cosmic-ray air showers for astroparticle physics.
This paper presents the most precise single measurement of the CKM angle to date, determining it to be by applying a novel, model-independent approach that simultaneously analyzes joint datasets from the BESIII and LHCb experiments.
This paper presents the most precise measurement of the CKM angle to date, yielding a value of by performing a joint, model-independent analysis of quantum-correlated meson data from BESIII and decay data from LHCb.
Using 685 days of data collected between May 2022 and July 2025, the SNO+ experiment achieved a precise measurement of the neutrino oscillation parameter consistent with other long-baseline experiments and reported the first geoneutrino flux measurement in the Western Hemisphere.
The CMS experiment at the LHC reports the first observation of nuclear suppression in coherent (1S) photoproduction off heavy nuclei, measuring a nuclear gluon suppression factor of at a high energy scale of GeV and .
This paper presents a fast, data-driven parametric simulation tool for pixel sensors that bypasses the need for proprietary manufacturing details by using measurement inputs, demonstrating its efficiency and validation on the MALTA2 sensor to guide performance optimizations for the upcoming MALTA3 redesign.
This paper presents the development and validation of pre-supernova neutrino event generation capabilities within the sntools package, aiming to enable early warning detection and unified analysis of pre-collapse stellar neutrinos for current and next-generation detectors like Hyper-Kamiokande.