2160 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 138 fb of 13 TeV proton-proton collision data collected by the CMS experiment, this paper presents the first unfolded double-differential cross-section measurements of boosted W+jets events to extract a W boson mass of 80.83 0.55 GeV, achieving the smallest uncertainty to date for an all-jets final state at a hadron collider.
Using 164 fb⁻¹ of 13.6 TeV proton-proton collision data collected by the ATLAS detector, this study employs matrix element-based observables and angular distributions to constrain CP-odd couplings and probe Higgs boson interactions with polarized vector bosons in vector-boson fusion events, confirming Standard Model predictions while achieving improved sensitivity through a new neural network classification algorithm.
Using 140 fb of 13 TeV proton-proton collision data from the ATLAS detector, this paper presents a combined analysis of Higgs boson interactions with vector bosons across multiple decay channels, finding no evidence of CP violation and establishing the most stringent constraints to date on relevant CP-violating SMEFT Wilson coefficients, including simultaneous limits on three coefficients for the first time.
This paper proposes a generalized Georgi-Machacek Model without custodial symmetry to explain recent LHC excesses in vector-boson fusion channels by allowing mass splitting among new Higgs bosons, thereby accommodating observed signals in , , and di-photon production while satisfying experimental constraints.
This study utilizes microwave whispering gallery mode analysis to characterize the temperature-dependent biaxial dielectric permittivity and loss tangents of single-crystal calcium tungstate from room temperature down to 4 K, revealing improved cryogenic performance and identifying a magnetic loss channel relevant to quantum and bolometric applications.
This study utilizes QCD sum rules with nonperturbative effects up to dimension ten to predict the masses and residues of ground and excited spin-3/2 doubly heavy baryons ( and containing $cc$, $bc$, or $bb$ quarks), providing essential theoretical guidance for future experimental searches.
This paper demonstrates that transfer learning with Generative Adversarial Networks effectively extrapolates physics information from synthetic neutrino-carbon scattering data to related processes like neutrino-argon and antineutrino-carbon interactions, significantly outperforming models trained from scratch and maintaining high accuracy even with limited statistics.
This paper proposes using optimal transport as a physics-based intermediate event representation for weakly supervised anomaly detection, demonstrating that it significantly outperforms both standard high-level observables and end-to-end deep learning on low-level data in detecting rare resonant signals within LHC datasets.
The ADAMOS project proposes a novel 20 GHz axion haloscope experiment at the University of Hamburg, utilizing a fixed-frequency "thin-shell" cavity and a calibrated RF chain to simultaneously search for conventional cold dark matter axions, relativistic axions from axion quark nugget annihilations, and transient streaming dark matter signals.
Using 137 fb⁻¹ of 13 TeV proton-proton collision data collected by the ATLAS detector, a search for the lepton-flavour violating decay via the channel found no evidence of signal, setting an observed 90% confidence level upper limit on the branching ratio of .