1434 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 computationally efficient model for determining the sensitivity of closed dielectric haloscopes to axion dark matter, which is validated using MADMAX prototype data to establish the foundation for future searches in the 26–500 eV mass range.
This paper details the strategies and results of optimizing fresh air ventilation to successfully reduce radon concentration in the main hall of the 700-m deep JUNO underground laboratory from 1600 Bq/m³ to the required 100 Bq/m³, identifying underground water as a primary radon source.
This paper reinterprets NA62 data on decays to establish the strongest accelerator-based constraints on the vectorial axion-down-strange coupling and derive a robust lower bound on the Peccei-Quinn scale, complementing existing astrophysical limits.
The MAGNETO- experiment utilized a high-statistics measurement of Pu decays with metallic magnetic calorimeters to find no evidence for keV-scale heavy neutral leptons, thereby establishing an upper limit of at 95% confidence for an 11.5-keV HNL mixing with the electron neutrino.
This paper presents an updated baseline design for HALHF, a hybrid, asymmetric Higgs factory that combines plasma-wakefield acceleration for electrons with radio-frequency acceleration for positrons to overcome efficiency challenges and reduce costs, detailing the optimization process used to address issues identified in the original proposal.
To meet the ultra-low radioactive contamination requirements of the JUNO detector, the study details the implementation of a large-scale underground cleanroom system that maintains air cleanliness around class 74,000 and introduces a highly sensitive ICP-MS method for directly measuring and controlling U/Th deposition rates on detector surfaces.
This paper describes the "Fair Universe Higgs Uncertainty Challenge," a pioneering competition in high-energy physics and machine learning that focused on developing analysis techniques to accurately measure uncertainties and provide credible confidence intervals for the cross-section, with results now publicly available on Zenodo.
This paper proposes a minimal framework utilizing the discrete gauge symmetry , motivated by the Standard Model's internal structure, to naturally resolve the axion quality problem while simultaneously explaining neutrino masses, baryon asymmetry, and dark matter.
This paper introduces a new parton-shower algorithm that exactly reproduces the dynamics of linearized effective kinetic theory to provide a first-principles description of jet thermalization in QCD plasmas, overcoming previous limitations by properly incorporating recoils, holes, quantum statistics, and merging processes.
Using QCD sum rules, this study calculates the mass and width of the axial-vector hadronic molecules and with quark content , predicting a mass of approximately 15.8 GeV and an unstable width of about 114 MeV to guide future experimental searches for fully heavy molecular structures.