2524 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 an automation-friendly algorithm that utilizes the calculable contributions in SMEFT to model higher-order truncation uncertainties with a minimal set of nuisance parameters, thereby significantly reducing parameter counts and ensuring EFT validity by constraining bounds to kinematic regions where uncertainties are subdominant.
This paper utilizes AMPT and UrQMD models to simulate hyperon-kaon correlations in collisions at 20, 39, and 62 GeV, establishing a baseline without baryon junction mechanisms to test theories of baryon number transport and strange quark pair correlations.
Using a room-temperature dielectric multilayer haloscope coupled with a sensitive CMOS sensor, researchers conducted a 904-hour search for dark-photon dark matter near 2 eV and, finding no excess events, established a 90% confidence-level upper limit of for a mass of 1.9 eV/.
This paper investigates the spectroscopic properties of the double strange hybrid baryon ($ssqg$) using QCD sum rules with an interpolating current containing explicit gluonic degrees of freedom, yielding theoretical mass predictions of approximately 1593 MeV for the ground state and 1897 MeV for the first excited state to guide future experimental searches.
This paper compares dimension-8 effects on production from quark-antiquark and photon-photon initial states at the LHC, demonstrating that the photon-photon channel offers a dominant bosonic contribution for constraining anomalous gauge couplings and assessing the validity of Effective Field Theory while providing updated limits using current and future data.
This paper investigates a dark neutrino portal scenario where a light gauge boson mediates ultra-long-range neutrinophilic forces, demonstrating that the Deep Underground Neutrino Experiment (DUNE) can probe previously unexplored parameter space that simultaneously addresses neutrino oscillation anomalies and the Hubble tension.
This paper presents a selection of recent ATLAS and CMS measurements exploring Quantum Chromodynamics across a wide range of energy scales, from soft hadronic interactions and event-shape observables to hard perturbative processes like di-jet production, double-parton scattering, and diffractive events measured by forward proton detectors.
This paper demonstrates that tetraphenyl butadiene-coated wavelength-shifting fibers can reliably detect scintillation light in high-pressure gaseous xenon and argon, achieving light collection efficiencies of approximately 1% and validating their suitability for future large-scale time-projection chambers like those in the NEXT program.
This paper describes the extension of the variable flavor number scheme to three-loop order, which incorporates mass effects and heavy-quark parton distribution functions, validates this approach at large scales through renormalization group analysis, and provides numerical implementations of relevant Wilson coefficients.
This paper presents the first measurement of the -jet identification efficiency for the transformer-based GN2 algorithm using 56 fb of 13.6 TeV proton-proton collision data collected by the ATLAS detector, demonstrating significant performance improvements over its predecessor and providing essential correction factors for physics analyses.