2101 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.
Using proton-proton collision data at = 13 TeV, this study measures the fragmentation properties of jets containing (nS) mesons and finds that current Monte Carlo models, including recent quarkonia production developments, fail to satisfactorily describe the observed longitudinal and transverse momentum projections.
Using 140 fb of 13 TeV proton-proton collision data, the ATLAS experiment reports the first observation of electroweak production of two isolated photons in association with two jets with a significance of 6.2, measuring fiducial and differential cross-sections and setting limits on anomalous quartic gauge couplings within an effective field theory framework.
This paper presents the Run 2 calibration procedure for large-radius jets in the ATLAS detector using 13 TeV proton-proton collision data, achieving residual energy and mass scale uncertainties of approximately 1% up to 1 TeV and 2–3% up to 2 TeV to enable precise Standard Model measurements and sensitive searches for new physics.
By analyzing 12 years of IceCube data with improved reconstruction techniques, this study establishes a 5.7 detection of high-energy neutrino emission from the Milky Way's Galactic plane, particularly its inner region, marking a significant milestone for Galactic multi-messenger astronomy.
This paper demonstrates that a future multi-TeV muon collider offers unprecedented sensitivity to charged lepton-flavor-violating four-lepton operators within the Standard Model Effective Field Theory, with projected constraints on Wilson coefficients reaching up to an order of magnitude beyond current limits through global fits of angular distributions at various center-of-mass energies and beam polarizations.
This paper proposes a novel cosmological model featuring cooling QCD axion dark matter with a specific number density to realize a doubled-baryon scenario that resolves the Hubble tension between late-universe SH0ES and early-universe Planck observations.
Using 138 fb of proton-proton collision data at 13 TeV collected by the CMS experiment, this paper presents measurements of inclusive and differential fiducial cross sections for Higgs boson production and decay to four leptons, all of which are consistent with Standard Model predictions.
Using 2022 proton-proton collision data at = 13.6 TeV corresponding to an integrated luminosity of 34.7 fb, the CMS Collaboration measured the inclusive and differential Higgs boson production cross sections in the four-lepton final state, finding results consistent with Standard Model predictions.
This paper demonstrates that Neganov-Trofimov-Luke (NTL) assisted cryogenic light detectors achieve a signal-to-noise gain of approximately 9 and a baseline noise of ~10 eV, validating their viability for background reduction in future neutrinoless double-beta decay experiments like CUPID.
This paper details the design, construction, and validation of a nine-sector muon veto system for the CROSS experiment at the Canfranc underground laboratory, demonstrating its ability to reduce muon-induced background in the region of interest to an acceptable level for neutrinoless double-beta decay searches despite an 18% dead time.