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 paper proposes that future neutrino telescopes will utilize neutrinos as a robust, low-uncertainty mass tracer for the Milky Way's Central Molecular Zone, thereby refining star-formation models and improving gas measurements in distant galaxies.
This Letter of Intent outlines a proposal to develop a future experiment at the High-Intensity Muon Beam facility at PSI, aiming to improve current sensitivity by over an order of magnitude within the next decade to maintain leadership in searching for charged lepton flavor violation.
The PADME experiment conducted a blind search for the hypothetical 17 MeV X17 particle via annihilation using a positron beam on a fixed target, finding no significant evidence for its existence as the data remained consistent with background expectations, resulting in the establishment of new exclusion limits and a most significant deviation of only 2 standard deviations.
This paper investigates how a polarized electron beam at the proposed "Chiral Belle" upgrade of Belle II can distinguish the spin and Lorentz structure of invisibly decaying dark bosons by analyzing the polarization dependence of the mono-photon production channel ().
This paper establishes a theoretical framework utilizing dihadron fragmentation functions and a newly introduced "EEC-DiFF" to bridge nonperturbative and perturbative regions of near-side energy-energy correlators, successfully reproducing experimental data in the free hadron and transition regimes through a first-of-its-kind fit.
This paper proposes using asymmetric beam energies at muon colliders to boost forward muons into detector acceptance, thereby overcoming shielding limitations and improving the reconstruction of vector boson fusion processes like VBF Higgs production.
This paper surveys approximately 70 rare and exclusive few-body Standard Model Higgs boson decays with branching fractions below , providing theoretical predictions, current experimental limits, and HL-LHC projections—including 20 newly computed channels—to guide future research in constraining couplings, probing flavor-changing processes, and estimating backgrounds for exotic physics.
This paper presents a novel spiral-configured wire-metamaterial cavity for plasma haloscopes that enables continuous 25% frequency tuning and faster scanning speeds, with experimental validation confirming its feasibility for detecting high-mass dark matter axions.
This paper demonstrates that a modified Double Logarithmic Approximation incorporating energy conservation accurately describes the inclusive charged-particle multiplicity distributions of quark- and gluon-initiated jets in 13 TeV $pp$ collisions, showing consistency with both ATLAS experimental data and PYTHIA simulations.
This paper describes the design, operation, and initial results of three small-scale GRAND prototypes (GRAND@Nançay, GRAND@Auger, and GRANDProto300), demonstrating that their successful autonomous radio detection of air showers validates the instrumentation and methodology for the future Giant Radio Array for Neutrino Detection.