2131 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 reports the sub-nanosecond characterization of micro-spill structures in medical cyclotron and synchrotron beams using high-frequency silicon carbide sensors, demonstrating how precise knowledge of beam time structure is essential for mitigating pulse pileup and optimizing readout electronics for particle physics experiments.
Using 8.4 fb of LHCb Run 1 and Run 2 data, this study performs a comprehensive violation analysis of the decay by fitting angular observables with nonlocal hadronic amplitudes, achieving an order-of-magnitude improvement in precision for -violating Wilson coefficients while finding no significant deviation from the Standard Model.
This paper details the algorithms and software configuration used for charged-particle and primary vertex reconstruction in the ATLAS Inner Detector, demonstrating their high efficiency, resolution, and low mis-reconstruction rates when applied to both Run 2 and early Run 3 data under high pile-up conditions.
Using LHCb data from proton-proton collisions collected between 2011 and 2018, the paper reports evidence for the decay with a significance of and determines its branching fraction to be .
This paper argues that while flavor remains a conceptually incomplete aspect of the Standard Model, the DUNE experiment offers a powerful, systematic framework to test the limits of the current three-flavor description and search for small deviations through its unique combination of precision oscillation measurements, near-detector capabilities, and the DUNE-PRISM strategy.
This paper presents a comprehensive phenomenological analysis of new high-precision COHERENT germanium CENS data to extract updated Standard Model and nuclear physics parameters, including the weak mixing angle and germanium neutron radius, while simultaneously constraining neutrino non-standard interactions through a global combined analysis with other experimental datasets.
Using a novel machine-learning-based flavor-tagging algorithm on CMS data from 13 TeV proton-proton collisions, researchers achieved the first evidence for mixing-induced CP violation in B J/ decays by measuring a weak phase that deviates from zero by 3.2 standard deviations.
The MicroBooNE experiment conducted an inclusive search for anomalous single-photon production to investigate the MiniBooNE low-energy excess, finding overall agreement with predictions but observing a localized excess of approximately 2σ significance in events with no visible protons and shower energies below 600 MeV.
Using 338 pb of low-pile-up proton-proton collision data at TeV collected by the ATLAS detector in 2017 and 2018, this paper presents the first measurement of the full set of -boson angular coefficients and differential cross-sections as a function of transverse momentum in the full lepton phase space, showing agreement with theoretical predictions incorporating QCD corrections up to order .
This paper introduces a model-independent framework using public Belle II data to reinterpret the decay channel, establishing it as a dual probe for new physics that yields the strongest current limit on the branching fraction and constrains axion-quark couplings.