2142 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 first measurement of the angular distribution parameters, specifically the forward-backward asymmetry () and the flat term (), for the decay using LHCb data, finding results that are largely consistent with Standard Model predictions.
This paper investigates how solar-reflected inelastic dark matter, which is accelerated by solar electrons, can produce detectable energy signals in terrestrial experiments, potentially allowing for new constraints on MeV-scale dark matter models.
Using a combined dataset of from Belle and Belle II, this paper explores rare meson decays involving leptons and neutrinos, including the first inclusive measurement of and searches for final states.
HGQ-LUT is a new LUT-aware training approach that enables fast, automated, and hardware-efficient deployment of neural networks on FPGAs by accelerating training by over 100 times and providing an end-to-end workflow for optimizing accuracy-resource trade-offs.
This paper presents the expected sensitivity and cross-section limits for detecting light exotic scalars via the "scalar-strahlung" process at a 250 GeV International Linear Collider (ILC), utilizing both full and fast simulations for various decay channels.
This paper demonstrates that naturalness scenarios naturally suppress neutrino masses through a mechanism involving numerous mixing partners, leading to a specific tower of additional neutrino mass eigenstates that offers unique, testable signatures in terrestrial oscillation, mass, and neutrinoless double beta decay experiments, thereby extending the model's phenomenological reach beyond cosmology.
This paper proposes a rigorous method for identifying and controlling detector-related systematic uncertainties in two-body mass measurements, demonstrating its application to the LHCb experiment's potential to improve the precision of the hyperon mass measurement by a factor of three to a total uncertainty of 2.2 keV/.
Using data from the CMS detector at the CERN LHC, this study reports the first observation of suppressed charged-particle production in ultrarelativistic oxygen-oxygen collisions, evidenced by a nuclear modification factor below unity that supports the existence of parton energy loss in intermediate-sized nuclear systems.
The LHCb collaboration measured charged-hadron distributions in beauty and charm jets from 13 TeV proton-proton collisions, observing differences consistent with the dead-cone effect and hard fragmentation that provide new constraints on heavy-flavor hadronization mechanisms.
Using 14 years of Telescope Array Surface Detector data and a neural network classifier fine-tuned on experimental data to distinguish between proton- and photon-induced events, the study reports no significant photon candidates and establishes an updated upper limit on the diffuse ultra-high-energy photon flux above eV of .