2160 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 enhanced PICOSEC detector configurations that utilize thick reflective photocathodes on readout electrodes of various avalanche multipliers to improve robustness and performance, including operation at mbar gas pressures.
Using QCD sum rules with nonperturbative effects up to dimension twelve, this paper investigates light double-gluon hybrid mesons to determine the masses and current couplings of various , , and configurations with specific quantum numbers, providing theoretical predictions to guide future experimental searches.
Using CMS data from lead-lead and proton-proton collisions at = 5.02 TeV, this study investigates the longitudinal invariance and shape evolution of jet-induced peaks in two-particle angular correlations, revealing that the peaks broaden significantly in pseudorapidity and exhibit increased longitudinal asymmetry as collision centrality and particle pseudorapidity increase.
This paper introduces ColliderAgent, the first language-driven, multi-agent system that autonomously executes end-to-end collider phenomenology workflows—from theoretical Lagrangians to detector-level analyses and exclusion limits—by leveraging a decoupled architecture and the Magnus execution backend to enable scalable, reproducible, and package-agnostic research in high-energy physics.
This paper reports the first experimental observation of dressed states of proton spins in water using a strong off-resonant magnetic field, demonstrating multiple spin-state transitions that align with the quantum Rabi model beyond the rotating-wave approximation and extending precision spin manipulation capabilities in nuclear magnetic resonance.
This paper details the design, construction, and performance of the Super Fine-Grained Detector (SuperFGD), a novel segmented plastic scintillator installed in the T2K experiment's upgraded ND280, which utilizes 3D tracking, high light yield, and sub-nanosecond timing to significantly improve particle identification and enable the first reconstruction of neutron kinetic energy in a neutrino experiment.
Using the full ATLAS Run 2 dataset of 140 fb at 13 TeV, this study reinterprets thirteen supersymmetry searches to set comprehensive 95% confidence level mass limits on gluinos, top squarks, tau-sleptons, and charginos/neutralinos across a broad spectrum of R-parity-violating coupling strengths, thereby bridging the gap between prompt and long-lived particle signatures.
This paper investigates whether a massive sterile neutrino could explain the discrepancy between -meson and -baryon decay anomalies by revisiting the semileptonic sum rule, concluding that the induced effects are too small to resolve the tension and thus the sum rule remains a robust consistency check for experimental data.
This paper presents the design and room-temperature operational results of a spark chamber prototype equipped with a flash lamp, intended to generate vacuum ultraviolet light for testing precision sensors used in noble liquid detectors for dark matter and neutrino physics.
This paper proposes migrating LEP data to the standardized EDM4hep format to mitigate long-term data loss risks, enhance FAIRness, and leverage the dataset as a crucial benchmark for the future FCC-ee physics program, a strategy validated by a successful proof-of-concept migration of ALEPH data.