2503 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 introduces Pythia-Contrib, a modular framework that enables third-party developers to extend the Pythia 8 event generator with new physics models without adding external software dependencies to the core code base.
The BESIII experiment utilizes high-luminosity data from two-photon collisions at to precisely measure electromagnetic transition form factors, thereby providing essential experimental input to reduce theoretical uncertainties in the hadronic light-by-light scattering contribution and resolve the discrepancy in the muon anomalous magnetic moment.
This special issue compiles original research and review articles detailing the MoEDAL-MAPP experiment at the LHC, which is dedicated to searching for anomalous, (meta-)stable particles like magnetic monopoles and highly charged particles predicted by extensions of the Standard Model.
The COSINE-100 experiment utilized a multi-layer perceptron classifier on its full six-year dataset to lower the analysis threshold to 0.49 keV, thereby probing previously unexplored parameter space for spin-dependent WIMP-proton interactions in the 2.0–2.8 GeV/ mass range.
This paper proposes that future electron-proton colliders, particularly the LHeC and FCC-eh, can provide an independent and competitive determination of the CKM matrix element with a projected precision of 0.7–0.8% by analyzing bottom-tagged charged-current deep-inelastic scattering events, offering a distinct systematic uncertainty profile compared to traditional semileptonic B-decay measurements.
Using 138 fb of proton-proton collision data at = 13 TeV collected by the CMS detector, this study presents the first observation of associated (1S) + Z production and measures the effective double-parton scattering cross section, including its dependence on transverse momentum.
This paper proposes two methods utilizing dimuon production and minimum bias events at the LHC to probe proton structure by inferring the average number of partonic interactions, their dependence on momentum fraction and flavor, and the impact parameter overlap within a geometric multiparton interaction model.
The paper introduces HEPTABench, a portable framework for controlled evaluations of agentic systems in high-energy physics that demonstrates how integrating domain-specific tools significantly enhances the accuracy, reliability, and success rates of scientific tasks across various frontier models.
This paper presents the cryogenic characterization of FBK NUV-HD-cryo Silicon Photomultipliers, including measurements of dark noise, gain, crosstalk, and photon detection efficiency at temperatures relevant to the upcoming DarkSide-20k liquid argon dark matter experiment.
Using a large dataset of $2.7$ billion decays collected by the BESIII detector, this paper presents a model-independent amplitude analysis of the system in radiative decays, revealing scalar partial-wave behavior consistent with studies and identifying the as the only significant tensor resonance while providing binned log-likelihood results for future phenomenological modeling.