1402 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 proposes that the FCC-ee can significantly advance precision QCD studies by collecting approximately hadronic events at center-of-mass energies between 20 and 80 GeV through initial- and final-state radiation during Z-pole runs and dedicated low-energy collisions, thereby enabling detailed investigations of jet properties, event shapes, and nonperturbative dynamics.
This paper employs a dispersive approach leveraging the universality of low-energy pion-pion final-state interactions, particularly isospin-2 contributions, to successfully predict the Dalitz-plot distribution of the large localized CP violation observed in decays.
The paper introduces WINTER, a novel broadband interferometry experiment utilizing a high-finesse Fabry-Pérot cavity in a magnetic field to detect photon-axion conversion in vacuum, aiming to achieve photon-axion coupling sensitivities down to for axion masses up to 380 eV independent of the dark-matter hypothesis.
This paper argues that optimizing jet classifiers solely for high performance metrics like accuracy or AUC can lead to models with low resilience and high model dependence, advocating instead for a balanced approach that considers the trade-offs inherent in the Pareto frontier of resilient jet tagging.
This paper utilizes Generalized Parton Distributions within the collinear factorization framework to predict that exclusively produced quark-antiquark pairs in electron-proton scattering at the Electron-Ion Collider exhibit rich quantum entanglement, Bell nonlocality, and significant transverse polarization, particularly for heavy quarks in low-energy kinematic regions.
The SNO+ collaboration measured a cosmogenic neutron yield in ultra-pure water at high muon energies, finding agreement with FLUKA simulations over GEANT4 and revealing a lower yield than in heavy water, which underscores the critical influence of target material composition on neutron production for future underground experiments.
This paper employs an extended stochastic variational method combined with complex scaling to compute the bound and resonant states of various muonic few-body Coulomb systems with high precision, successfully resolving previously unknown shallow resonances in three- and four-body sectors.
This paper presents a complete next-to-next-to-leading order QCD calculation of the decay width difference and CP asymmetry in neutral -meson mixing, providing precise numerical predictions for both and systems along with detailed uncertainty analyses and implications for CKM unitarity.
This paper presents the design, characterization, and successful laboratory validation of a Cockcroft-Walton high-voltage system for a hybrid Digital Optical Module, demonstrating its ability to provide stable, independently adjustable bias voltages for 31 photomultiplier tubes with the noise, gain, and timing precision required for deep-sea neutrino telescopes.
This paper introduces a generalizable foundation model for calorimetry that leverages next-token transformer architectures combined with Mixture-of-Experts pre-training and parameter-efficient fine-tuning to enable modular, scalable, and computationally efficient simulation of particle showers across diverse materials and detector configurations without catastrophic forgetting.