1392 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 study evaluates the long-term stability of a single-mask triple GEM detector prototype under 98 days of continuous Fe irradiation, demonstrating consistent gain, efficiency, and energy resolution despite variations in ambient temperature, pressure, and humidity, thereby validating its suitability for large-scale Micro Pattern Gaseous Detector experiments.
This paper investigates the potential for the Mu2e experiment to detect lepton-flavor-violating transitions in muonic atoms mediated by axion-like particles, concluding that while light mediators can parametrically enhance the rate, stringent constraints from electron anomalous magnetic moments and other flavor-violating processes severely limit the observable branching ratio to at most , making the upcoming Mu3e experiment the most promising probe for the viable parameter space.
This paper presents significant upgrades to the Super-Kamiokande "SNWATCH" system, including a new HEALPix-based fitter and an optimized maximum-likelihood fitter that leverage gadolinium-enhanced data to reduce supernova alert generation time to approximately 90 seconds while improving the accuracy of pointing direction reconstruction.
This paper presents measurements of prompt and non-prompt J/ production yields at midrapidity in 13 TeV pp collisions, revealing a stronger-than-linear increase in self-normalized yields with charged-particle multiplicity that varies depending on the azimuthal region relative to the J/ momentum.
This paper presents the latest T2K experiment results, highlighting the first data from a gadolinium-loaded far detector and world-first cross-section measurements of rare interaction channels to demonstrate the critical synergy between interaction modeling and oscillation analysis in the search for leptonic charge-parity violation.
This study utilizes a single-cell readout SiPM structure and three validated analysis methods to demonstrate that afterpulse probability and time constants remain largely independent of neutron irradiation fluence, with probabilities below 6% and time constants under 10 ns for overvoltages between 3 and 5 V.
This paper presents a new method and comprehensive analysis of decays to determine the production fraction ratio , providing evidence for isospin violation at and revising branching fractions to potentially alleviate the puzzle.
The LHCb collaboration presents the first search for the lepton-flavour violating decay using 9 fb of proton-proton collision data, finding no significant signal and setting a new world-record upper limit on the branching fraction of , which provides the first constraint on such transitions at the LHC.
This paper demonstrates that Graph Neural Networks, integrated into an automated multi-objective optimization framework and accelerated by a fast optical photon simulation, outperform classical methods for energy measurement, particle identification, and detector design optimization of a proposed iron-scintillator calorimeter for the Electron Ion Collider's second detector.
This paper introduces a data-driven framework for estimating trigger efficiencies at LHCb and presents the design, implementation, and performance of the centralised software package TriggerCalib, which facilitates these calculations and uncertainty estimations for physics analyses.