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.
Using 140 fb of 13 TeV proton-proton collision data from the ATLAS detector, this study reports a direct, model-independent on-shell measurement of the Higgs boson total width via signal-background interference, setting an observed upper limit of 307 MeV at 95% confidence level.
This paper demonstrates that replacing a full statistical model with a covariance matrix can alter the likelihood-ratio ordering and confidence decisions of an experiment by improperly reintroducing ancillary information into parameter inference, leading to significant discrepancies in coverage even when both methods are exactly calibrated.
This paper outlines the new baseline strategy for CMS Phase-2 tracking at the HL-LHC, which combines GPU-optimized and CPU-vectorized algorithms to efficiently handle unprecedented computational challenges while reducing resource requirements and enhancing physics reach through displaced tracking and machine learning.
The BESIII experiment reports the observation of significant double- production in collisions at , measuring a ratio of approximately 40.4% that aligns with double- production rates and challenges existing theoretical predictions regarding quark hadronization.
This paper critiques the standard formalism for calculating the isospin breaking correction in superallowed beta decays for violating nucleon basis independence and proposes a new perturbative "generating function approach" to achieve the precision required for testing Cabibbo unitarity.
This paper reviews how rapid advancements in quantum computing and sensing technologies are reshaping particle physics by enabling the study of nonperturbative dynamical processes and facilitating novel searches for physics beyond the Standard Model with unprecedented sensitivity.
This paper presents the proceedings of the 2026 MDvDM conference, highlighting significant theoretical, computational, and experimental advancements in using natural and synthetic mineral crystals as detectors to measure nuclear recoils from neutrinos and dark matter over both laboratory and geological timescales.
This paper demonstrates that relaxing strict hit-timing requirements in the detector design of a future 10 TeV Muon Collider can recover sensitivity to long-lived charged particles, such as staus in a Gauge Mediated Supersymmetry Breaking model, which would otherwise be missed due to beam-induced backgrounds.
This paper presents a combined analysis of XENON1T and XENONnT data that excludes previously unconstrained dark matter-electron scattering cross sections for sub-GeV dark matter masses between 4.6 keV and 2 MeV by leveraging solar upscattering and low-energy electronic recoil detection.
This paper proposes a domain-adaptation-based method to decorrelate anomaly scores from resonant mass, effectively mitigating background sculpting in weakly supervised anomaly detection at the LHC while preserving or even recovering sensitivity to new physics signals.