2131 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 presents the IDEA detector concept optimized for the FCC-ee, detailing its specific sub-system designs, the technical solutions addressing physics requirements, ongoing R&D efforts, test-beam results, and expected performance on key physics benchmarks.
This paper demonstrates that a compact plastic-scintillator sensor coupled with a thermal-neutron screen and a single photomultiplier tube can effectively discriminate between fast neutrons, thermal neutrons, and gamma rays in mixed radiation fields, with specific configurations achieving high separation figures of merit.
This paper investigates the hadronic molecule using QCD sum rules, predicting its mass to be MeV and its total width to be MeV, which indicates that the state decays strongly into ordinary mesons via dominant fall-apart and subdominant annihilation mechanisms.
This paper establishes a systematic effective field theory framework using chiral symmetry to connect ultraviolet interactions to low-energy hadronic observables, demonstrating that while baryon-antibaryon oscillations probe a limited subset of operators, dinucleon decay offers a broader sensitivity to previously unexplored channels and parameter space.
This paper discusses the amplitude analysis of decays using Belle II data, which is essential for distinguishing CP eigenstates from non-CP eigenstates to constrain new physics through time-dependent CP-asymmetry measurements.
This paper demonstrates that replacing PyCBC's traditional binned histogram-based density estimators with normalizing flows significantly reduces storage requirements by over three orders of magnitude while maintaining or improving the sensitivity of multi-detector gravitational-wave searches, thereby enabling scalable analysis for future detector networks.
Using 9 fb of proton-proton collision data from the LHCb experiment, researchers report the first evidence of the rare decay with a significance of 3.2 and a measured branching fraction consistent with Standard Model predictions.
This paper presents three recent LHCb results on flavor-changing charged current decays: the first measurement of the branching fraction ratio using , the determination of the branching fraction for , and the extraction of form-factor parameters from decays.
This paper presents the validation of low-radioactivity internal components for the CYGNO experiment's directional TPC detector, demonstrating that a Nylon support structure with copper-deposited PET or Kapton sheets optimizes electrical performance while minimizing material contamination.
This paper presents a solution for achieving fully automated, process-independent precision for future lepton colliders by utilizing the Yennie-Frautschi-Suura theorem to combine local infrared subtraction with all-order resummation of soft and soft-collinear logarithms.