2092 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 LHCb experiment reports the first measurement of the -to- production cross-section ratio in and $pp$ collisions at using SMOG2, observing a ratio of in collisions that signals the emergence of nuclear effects and establishes a baseline for future studies with larger collision systems.
This paper reports the successful fabrication and characterization of a 20-gram, wingless, p-type inverted coaxial point-contact HPGe detector featuring thin amorphous-germanium contacts, which demonstrated stable sub-picoFarad operation, low leakage current, and high energy resolution while confirming sensitivity to near-surface interactions.
This paper presents an impact-parameter dependent perturbative QCD model based on the Color Glass Condensate framework, which successfully describes a wide range of combined HERA data at small- by incorporating an analytical solution to the Balitsky-Kovchegov equation and an exponential saturation momentum profile consistent with the Froissart theorem.
This paper presents a comprehensive reanalysis of DESI DR1 data combined with other cosmological probes, achieving percent-level constraints on key parameters and providing robust evidence favoring the normal neutrino mass hierarchy while setting the tightest bounds to date on the sum of neutrino masses and dynamical dark energy.
Using QCD sum rules, this paper investigates the masses and decay properties of the tensor hadronic molecules () and (), determining their instability against dissociation and calculating their full widths through dominant and subleading decay channels.
Using the full Run-2 dataset of proton-proton collisions at 13 TeV, the ATLAS experiment reports the first evidence of simultaneous production with a significance of and a measured fiducial cross-section consistent with Standard Model predictions.
This paper presents the first measurement of the polarization of and baryons in Ne collisions at GeV by the LHCb experiment, reporting a significant positive polarization for and a compatible-with-zero result for .
Using a large sample of events collected by the BESIII detector, this study reports the first observation of the decays for , providing new measurements of their branching fractions and evidence for hyperon resonance structures in the final states.
This white paper summarizes scientific challenges and AI/ML opportunities identified through the FAIRS Japan 2024 unconference, highlighting common technical themes such as high-dimensional reconstruction, fast simulation, and anomaly detection across accelerator physics, cosmology, and neutrino physics.
This paper demonstrates that incorporating precision timing information from a future HL-LHC detector layer into vector-boson-fusion Higgs decay searches significantly enhances sensitivity to long-lived particles by converting displaced vertices into four-dimensional objects, thereby suppressing prompt heavy-flavor backgrounds and extending reach into regimes where traditional spatial-only searches lose acceptance.