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.
The CJ26 global QCD analysis presents a new framework that simultaneously determines proton parton distribution functions and nuclear effects in deuteron targets by incorporating the full set of JLab 6 GeV and the first 12 GeV inclusive DIS data, with a specific focus on accurately modeling the interplay between higher-twist and off-shell corrections in the large- region.
This paper presents selected highlights from ICHEP 2026 regarding recent results from electron-positron heavy-flavor factories (BaBar, Belle, Belle II, and BESIII), covering processes, lepton-flavor universality tests, CKM matrix measurements, and hadron spectroscopy.
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.
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.
This paper presents a direct three-dimensional femtoscopic analysis of pion emission sources in EPOS4 Au+Au collisions across the RHIC Beam Energy Scan range, utilizing Fast Fourier Transforms to extract Lévy parameters and reduce projection biases while comparing out-side observables with UrQMD calculations to explore QCD phase diagram signatures.
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 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.
Using 4.5 fb of collision data collected by the BESIII detector, this study employs a double-tag technique and a global least-square fit to precisely measure the absolute branching fractions of twelve hadronic decay modes and determine the corresponding Born cross sections and effective form factors, achieving a 2 to 3-fold improvement in precision over previous results.
This study demonstrates that integrating epitaxial hexagonal boron nitride (hBN) thin films into niobium superconducting resonators significantly reduces dielectric loss and mitigates phonon-mediated errors, offering a promising materials-driven strategy to enhance the performance of quantum computers and sensors.
This paper introduces HepUKE, an uncertainty-aware knowledge evolution system for High Energy Physics analysis agents that quantifies evidence confidence via information entropy to enable self-evolving DSL knowledge bases and significantly reduces retrieval rounds while maintaining answer quality.