1434 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 white paper presents a community-driven vision to prioritize research and development in hardware-based machine learning systems—leveraging emerging technologies like AI, silicon microelectronics, and quantum processing—to address the unprecedented data challenges and enable real-time scientific discovery in the next generation of particle physics experiments.
This paper proposes a broadband impedance matching network utilizing the negative inductance of a biased Josephson junction to overcome the gain-bandwidth limitations of passive circuits, thereby enhancing the scan rate for axion dark matter searches.
This paper critically examines a recent analysis claiming evidence for a QCD critical end point via finite-size scaling of net-proton cumulants, highlighting methodological issues regarding acceptance windows, multiplicity scaling, and thermodynamic fields that must be addressed for a consistent interpretation.
This paper investigates fragmentation contributions to transverse nucleon spin observables in semi-inclusive deep-inelastic scattering at next-to-leading order within the collinear twist-3 factorization framework, confirming the validity of the formalism at the one-loop level and providing numerical predictions for HERMES and future EIC kinematics.
This review traces the evolution of precision timing in particle physics from 1990s scintillator-PMT systems to current picosecond silicon detectors at the HL-LHC, outlining four technological generations and identifying the ~10 ps resolution required for future colliders as the next critical milestone in detector R&D.
Using 158 million decays collected by the Belle detector, this paper reports the first searches for charged-lepton-flavor violation in decays, finding no significant signals and setting upper limits on the relevant branching fractions at the to level.
This paper reviews the history of heavy-ion experiments at the CERN SPS, detailing how studies with light and lead ions from the mid-1980s to 2000 culminated in the announcement of evidence for quark-gluon plasma formation and a subsequent energy scan to determine the creation threshold.
This paper demonstrates that accurately simulating the temporal resolution of Low-Gain Avalanche Detectors (LGADs) requires incorporating space charge effects and gain saturation to correct the overestimation of Landau noise caused by initial ionization models alone, a comprehensive framework validated against experimental data and implemented in the Weightfield2 simulation tool.
Using LHCb data from 2016 to 2018, this paper reports the first measurement of the flavor-untagged decay-time-integrated $CP$ asymmetry in decays, finding a result consistent with Standard Model predictions and providing direct constraints on new physics in tree-level -hadron decays.
The SUPAX prototype experiment successfully operated a 2 K copper cavity in a 12 T magnetic field to exclude axion-photon couplings down to GeV and dark photon kinetic mixing parameters above in the mass range around eV, demonstrating the viability of the full-scale haloscope design.