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 outlines a strategic five-year roadmap, informed by community surveys and the EuCAIF initiative, to overcome barriers like limited resources and expertise by defining critical infrastructure, training, and funding needs for integrating AI across particle, nuclear, and astroparticle physics.
This paper investigates how the reflectivity and phase shift of a storage bottle wall influence the sensitivity of ultracold neutron experiments searching for neutron-antineutron oscillations, highlighting the critical role of optimizing the antineutron pseudopotential and proposing methods to determine it.
Using 138 fb of proton-proton collision data at 13 TeV collected by the CMS experiment, this study presents a search for new resonances decaying into a Higgs boson and an anomalous jet identified via an autoencoder, finding no significant excess over Standard Model background and setting the most stringent upper limits to date on the production cross sections for various benchmark scenarios.
This study employs a refined AMPT transport model with adjusted beauty quark mass and flavor-specific coalescence parameters to successfully reproduce LHCb and ALICE data on beauty and non-prompt charm hadron production in 13 TeV $pp$ collisions, offering new insights into heavy quark dynamics and hadronization mechanisms in small collision systems.
Using a large sample of events collected by the BESIII detector, this study presents the first search for the rare electromagnetic Dalitz decays (), finding no significant signals and establishing upper limits on their branching fractions at the 90% confidence level.
This paper presents a comprehensive Monte Carlo simulation framework using coupled \textsc{mute} and \textsc{geant4} tools to characterize muon-induced neutron backgrounds at the shallow-underground CURIE facility, providing site-specific flux predictions and a validated depth-intensity relation to guide experimental design for low-background physics.
This paper presents state-of-the-art predictions for muon-electron scattering at the MUonE experiment by performing the first all-order resummation of soft and soft-collinear logarithms, matched with higher-order corrections to significantly reduce perturbative uncertainties and accurately describe the signal region.
This paper presents the results of measuring the dark current in the LCLS-II Sector 30 transfer line using a prototype LDMX trigger scintillator, a critical step toward validating the facility's suitability for the proposed Light Dark Matter eXperiment's low-current beam requirements.
This study investigates the electromagnetic polarizabilities of singly heavy mesons and doubly heavy baryons using heavy hadron chiral perturbation theory, predicting anomalously large electric polarizabilities for mesons due to near-degenerate - mass thresholds and establishing heavy diquark-antiquark symmetry to unify the chiral dynamics of these systems.
This paper proposes a classically conformal U(1)' extension of the Standard Model where sterile neutrino dark matter is produced via freeze-in, demonstrating that the resulting parameter space satisfies Lyman- and X-ray constraints while offering potential solutions to the tension and the 220 PeV KM3NeT event through multi-component or superheavy sterile neutrino scenarios.