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 paper presents a model-independent analysis of radiative corrections to the decay using dispersion relations to extend previous chiral perturbation theory results, thereby enabling a precise calculation of isospin-breaking corrections for the two-pion contribution to the muon's anomalous magnetic moment.
This paper reveals that higher-order cumulants mixing elliptic and triangular flow in Pb+Pb collisions exhibit a surprising simplicity at fixed impact parameter, where their variations are solely determined by the mean elliptic flow from the collision geometry, leading to analytic relations that agree well with CMS data and enable predictions for higher-order cumulants.
This paper investigates the discovery potential for heavy photophobic axion-like particles at a future 100 TeV proton-proton collider with 20 ab luminosity, demonstrating that electroweak-driven production and decay channels (specifically and ) offer significant sensitivity to the ALP-W coupling through detector-level analyses utilizing boosted decision trees.
This paper presents results from a May 2025 pilot field study in the US Central Plains that measured atmospheric muon flux perturbations near tornadic and non-tornadic storms to explore the feasibility of using muon detection as a novel method for inferring the two-dimensional atmospheric density fields of severe weather systems.
This paper demonstrates that seasonal density variations in the upper polar firn cause approximately 10% fluctuations in the amplitude and propagation time of refracted radio signals, introducing an irreducible uncertainty in the energy and direction reconstruction of ultrahigh-energy neutrinos detected in ice.
This paper proposes using topological anomalies in the process to probe the strange-quark electric dipole moment, estimating that current and future experiments like CMD-3, BESIII, Super Tau-Charm, and Belle II could achieve sensitivities ranging from to .
This paper introduces GRACE, an agentic AI system that autonomously designs and optimizes particle physics experiments by extracting structured representations from natural language or papers, constructing simulations, and iteratively proposing and evaluating detector modifications using first-principles Monte Carlo methods to improve physics performance under physical and budgetary constraints.
This paper presents a parameter-free dispersive analysis of the decay using a coupled-channel Muskhelishvili-Omnès framework, which successfully fits experimental data and validates the consistency of the underlying formalism across scattering, fusion, and radiative decay processes.
This paper presents the first experimental observation of quantum discord and evidence for quantum steering in top quark-antiquark pairs at the Large Hadron Collider, thereby corroborating the full hierarchy of quantum correlations (discord, entanglement, steering, and Bell correlation) in a high-energy system.
This paper reexamines the viability of MeV-scale QCD axions by deriving new constraints from kaon decay measurements, particularly the KTeV data, and concludes that the previously suggested parameter window is effectively excluded even after accounting for theoretical uncertainties.