1429 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 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 , $WZ$, and di-photon production while satisfying experimental constraints.
Using a 365 fb⁻¹ data sample from the Belle II experiment, the authors measured the lepton flavor universality ratios and via semileptonic tagging, obtaining results consistent with world averages that collectively deviate from Standard Model predictions by 1.7 standard deviations.
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 characterizes delayed electron backgrounds in the LUX-ZEPLIN detector and demonstrates that spontaneous grid electron emission can be efficiently rejected using coincident photon tagging, thereby enhancing the experiment's sensitivity to low-energy dark matter signals.
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.
This study characterizes thin optical filters for hybrid dual-readout calorimeters, demonstrating that while interference filters are unsuitable due to angle-dependent transmittance, specific absorptive long-pass filters effectively block over 99% of scintillation light from PWO crystals to enable high-purity Cherenkov light readout.
This paper presents a quantitative validation of Fluka simulations against experimental data from a pulsed neutron source test at CERN's DUNE ColdBox facility, demonstrating strong agreement in photoelectron counts and time constants for a small vertical drift LArTPC while identifying systematic effects for future large-scale detectors.
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.