2610 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.
The CMS experiment reports the first observation of single top quark production in association with W and Z bosons (tWZ) using 200 fb of proton-proton collision data at 13 and 13.6 TeV, achieving a statistical significance of 5.8 standard deviations with measured cross sections of 248 52 fb and 242 77 fb, respectively.
This paper presents an extension of the MadGraph5_aMC@NLO framework that enables automated leading-order calculations for S-wave quarkonium and leptonium production within NRQCD and NRQED formalisms, offering seamless integration with Beyond the Standard Model scenarios and highlighting the necessity of careful theoretical analysis beyond simple velocity-scaling rules.
This study systematically investigates the gravitational wave emission from a population of millisecond pulsars proposed to explain the Galactic Center GeV gamma-ray excess, concluding that while current detectors cannot observe them, next-generation instruments like the Einstein Telescope and Cosmic Explorer may detect these signals to definitively test the pulsar versus dark matter interpretations of the excess.
Using dijet-hadron correlations in lead-lead and proton-proton collisions at 5.02 TeV, the CMS collaboration firmly established the existence of a jet diffusion wake—a depletion of particles opposite to the jet direction—with a statistical significance exceeding 5 standard deviations, providing new insights into quark-gluon plasma properties.
This paper proposes that color-sextet scalar diquarks, unlike their color-triplet counterparts, can naturally explain the observed CP violation in decays and related U-spin sum rule deviations through unsuppressed amplitudes and a specific flavor hierarchy in their couplings.
This paper proposes a novel experimental search for dark photons at electron accelerators using inverse Compton scattering () with laser photons and a 3 GeV electron beam, demonstrating that this setup can probe unexplored regions of dark sector parameter space through photon counting techniques.
This paper develops a revised TMD factorization formalism for dijet production with a transversely polarized target at the EIC, incorporating NLO evolution kernels to predict significant gluon Sivers asymmetries ranging from 5% to 50%.
This paper presents the design, deployment, and performance verification of the Murchison Widefield Array Particle Detector Array (MWA PDA), an eight-detector system that successfully identifies cosmic ray extensive air showers to trigger radio data capture and serves as a pathfinder for future Square Kilometre Array instruments.
This paper presents a combined analysis of solar neutrino data from the XENONnT, PandaX-4T, and LUX-ZEPLIN experiments to constrain the solar B neutrino flux and weak mixing angle while establishing competitive bounds on nonstandard neutrino interactions mediated by both light and heavy vector particles.
This paper introduces CelloAI, a suite of repeatable and automated benchmarks designed to evaluate Large Language Models on HEP/HPC-specific tasks, including code documentation, GPU kernel generation, and graphical data analysis, to address the unique constraints of scientific software development.