1442 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 employs QCD sum rules to theoretically predict the ground-state masses of various hypothetical single-top baryons and mesons, finding that many of these states may exhibit weak binding or lie near constituent mass thresholds, thereby providing essential benchmarks for future experimental searches at the LHC and next-generation facilities.
This paper introduces a simple Monte Carlo model featuring explicit power-law multi-particle correlations in transverse momentum space to serve as a phenomenological tool for assessing the sensitivity of intermittency analyses to such correlations under various detector conditions.
This paper proposes a novel detection scheme for QCD axions in the to eV mass range by utilizing piezoelectric materials to generate a significantly enhanced axion-mediated force that induces resonant nuclear spin precession in a nearby sample.
The XENONnT experiment successfully utilized a YBe photoneutron source to calibrate low-energy nuclear recoil light and charge yields in liquid xenon, providing essential data for solar neutrino measurements and searches for light dark matter particles.
Using 140 fb of 13 TeV proton-proton collision data collected by the ATLAS detector, this paper reports the first observation of electroweak diboson production in association with a high-mass dijet system in semileptonic final states with a significance of 7.4, while also measuring cross sections and setting the first exclusion limits on anomalous quartic gauge couplings in this channel within the framework of an effective field theory.
Using 140 fb⁻¹ of 13 TeV proton-proton collision data collected by the ATLAS detector, this study measures high-mass production and interprets the results within an effective field theory framework to constrain anomalous four-fermion interactions and test lepton flavor universality, finding no significant deviations from Standard Model predictions.
This paper investigates the physics potential of the FCC-ee collider to detect invisible -meson decays, demonstrating that with produced bosons, the experiment could exclude branching fractions above and potentially discover signals up to using a multipurpose detector and advanced classification techniques.
This paper presents the first measurements of charged-particle azimuthal anisotropy coefficients (–) in TeV OO and NeNe collisions using the ATLAS detector, revealing a clear hierarchy and an enhanced elliptic flow in central neon collisions that provides new constraints on nuclear deformation and hydrodynamic response in light-ion systems.
Using 140 fb of 13 TeV proton-proton collision data collected by the ATLAS detector, the top-quark mass is measured to be 172.17 1.56 GeV by analyzing the invariant mass distribution of systems comprising an isolated lepton and a meson from top-quark decays.
This paper investigates phenomenological constraints and future discovery potential for muonphilic portals to fermionic asymmetric dark matter, analyzing both effective field theory operators and specific UV models to determine how 3 and 10 TeV muon colliders can probe parameter spaces currently allowed by direct detection, collider limits, and muon anomalies.