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.
This paper presents a comprehensive analysis of angular coefficients in Z and W boson production at hadron colliders, demonstrating that combining NNLL transverse-momentum resummation with NLO fixed-order calculations systematically improves the description of experimental data in the intermediate region without degrading agreement elsewhere.
The LHCb experiment has successfully implemented a converged, fully-GPU-based architecture using zero-copy network techniques to process an unprecedented 32 Tbps of real-time particle-collision data, setting a new standard for high-throughput data filtering in physics experiments.
Using 140 fb⁻¹ of 13 TeV proton-proton collision data, the ATLAS collaboration measures the electroweak production of a W boson in association with two jets, determining integrated and differential cross-sections in a fiducial region enhanced for vector-boson fusion and deriving stringent limits on anomalous triple-gauge-boson couplings within an effective field theory framework.
This paper presents the successful development and FPGA implementation of a real-time Graph Neural Network trigger module for the Belle II electromagnetic calorimeter, which achieves deterministic MHz throughput with improved position resolution, cluster purity, and efficiency compared to the baseline algorithm, marking a significant step toward GNN-based real-time reconstruction in collider triggers.
This review argues that the unquenched theoretical framework, which incorporates coupled-channel effects and hadronic loops, is essential for resolving long-standing discrepancies in charmonium spectroscopy and explaining the emergence of exotic hadronic states that cannot be accounted for by traditional quenched potential models.
This paper introduces SymbolFit, a machine learning package that automates the discovery of parametric functions for modeling High Energy Physics data through symbolic regression, successfully replicating known dijet spectra functions and achieving excellent statistical fits without relying on manual intuition.
This study demonstrates that gamma irradiation equivalent to just one or two days of operation at the HL-LHC effectively mitigates the negative effects of static charge on ATLAS ITk strip sensors, resolving early breakdown and low interstrip isolation issues observed during quality control testing.
Using 1.70 nb of 2018 CMS data from ultraperipheral PbPb collisions at 5.02 TeV, this study presents the most precise LHC measurement of the fiducial cross section and establishes the tightest constraints to date on the anomalous magnetic moment of the lepton, finding results consistent with next-to-leading-order QED predictions.
Using ATLAS detector data from 13 TeV and 13.6 TeV proton-proton collisions, this study presents the first evidence (4.0) for longitudinally polarised bosons in electroweak production with two jets, measuring a fraction of that aligns with Standard Model predictions.
Using 6 fb⁻¹ of proton-proton collision data collected by the LHCb detector at 13 TeV, this study measures the direct CP asymmetry in the Cabibbo-suppressed decay to be consistent with zero and, for the first time at a hadron collider, investigates the amplitude ratio and relative strong phase of versus decays.