1434 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 report details the design and characterization of a high-sensitivity cosmic muon telescope using plastic scintillators coupled to Multi-Pixel Photon Counters (MPPCs), which successfully validated the system's performance by measuring an angular distribution exponent of consistent with established literature.
This paper presents a comprehensive measurement of photon beam asymmetries, total, and differential cross sections for photoproduction off the proton up to 2.32 GeV, providing new constraints for amplitude decomposition and suggesting a potentially larger coupling of the -nucleon system to the resonance.
To resolve the significant tension between LHCb and BESIII measurements of the radiative-decay ratio in the region, this paper proposes a two-state scenario involving a shallow bound state and a nearby charmonium candidate (), which successfully describes the experimental data and predicts specific helicity-angle distributions for future verification.
This paper introduces an autonomous AI agent framework that efficiently navigates the combinatorial design space of variational quantum circuits by iteratively proposing, training, and refining architectures to optimize performance with minimal human intervention.
This paper investigates rare kaon decays to constrain the couplings of light vector and axial-vector bosons to non-conserved currents, finding that specific decay modes place stringent limits on these interactions and exacerbate existing tensions regarding the 17 MeV boson hypothesis proposed by the ATOMKI experiment.
This paper proposes a gaseous time-projection chamber detector using light nuclei (helium, carbon, and fluorine) at the Spallation Neutron Source to reconstruct the angular distribution and energy of coherent elastic neutrino-nucleus scattering events, thereby enabling event-by-event neutrino energy reconstruction and diverse physics measurements ranging from Standard Model cross-sections to sterile neutrino searches.
The MiniCACTUS-v2 prototype, a depleted monolithic CMOS timing sensor fabricated in a 150 nm process and tested at CERN in July 2025, achieved a record time resolution of 48.88 ps on a 175-micron-thick sensor operated at 500 V.
This paper presents the development and integration of a hybrid deep neural network for primary vertex reconstruction into LHCb's GPU-resident HLT1 framework, detailing the challenges of real-time constraints and data layout translation while outlining a roadmap for significant performance improvements through mixed-precision computing and model compression.
This paper presents the development and validation of high-precision Time-of-Flight detectors using high-refractive-index Cherenkov radiators coupled with Silicon Photomultipliers, achieving a system-level time resolution better than 33.2 ps and 100% detection efficiency through rigorous optimization and CERN beam tests.
This paper presents a new, general analytical procedure for Inverse Compton Scattering on laser beams and monochromatic isotropic radiation that derives both relativistic and ultrarelativistic limits, reproducing previous results by Jones and Blumenthal while offering testable solutions for current and future experiments.