2523 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.
Using data from the first part of LIGO-Virgo-KAGRA's fourth observing run, this study employs directional radiometer techniques to find no evidence of persistent gravitational-wave signals, thereby establishing the most stringent constraints to date on the strain amplitude and flux of narrowband, broadband, and extended sources across the sky.
Using a large sample of events collected by the BESIII detector, this study performs the first partial-wave analysis of the decay , identifying dominant contributions from excited states ( and ) and measuring their masses, widths, and the process's branching fraction.
This paper advocates for the use of the two-dimensional correlation function over the traditional one-dimensional for photon femtoscopy in high-energy nuclear collisions, arguing that this approach better leverages recent experimental advancements to overcome previous statistical limitations.
Using 10.7 years of high-energy neutrino data from the IceCube Neutrino Observatory, researchers successfully reconstructed the Earth's radial density profile and derived its mass and moment of inertia, providing the most precise weak-interaction measurements of these planetary properties to date and demonstrating neutrinos as a novel, complementary probe of Earth's interior alongside traditional seismological and gravitational methods.
This paper derives non-trivial linear and non-linear positivity bounds that define a spectrahedral geometry for the complete dimension-eight effective field theory of photons and a massless dark photon, analyzing how specific UV completions populate this geometric structure.
The 2026 Global Report on Data Preservation in High Energy Physics highlights significant advancements in legacy data revival and the integration of AI-driven automation, while underscoring the critical need for sustained funding and institutional support to ensure the long-term sustainability of open science and FAIR data principles.
This paper employs a hybrid transverse momentum dependent approach to confirm the universality of the Collins function by successfully describing STAR proton-proton collision data and subsequently provides leading-order predictions for Electron-Ion Collider kinematics, demonstrating that quasireal photon exchange effects, while sizable, do not hinder the clear extraction of the transversity distribution and its sea-quark component in lepton-proton collisions.
This paper presents new analytical expressions and predictions for double quarkonium production in unpolarized and polarized hadronic collisions at fixed-target experiments, utilizing transverse momentum dependent factorization combined with the Color-Singlet Model to describe angular structures, cross sections, and transverse single-spin asymmetries for current and future CERN and LHC facilities.
This paper presents the first calculation of single inclusive hadron and jet production at large transverse momentum in lepton-hadron scattering using a joint QCD+QED factorization framework, which introduces universal lepton distribution functions with combined evolution kernels and provides predictions for experiments at Jefferson Lab and the future Electron-Ion Collider.
This paper introduces MAIA, a new all-silicon detector concept optimized for a 10 TeV muon collider that demonstrates high reconstruction efficiencies for energetic particles even under realistic beam-induced background conditions.