1429 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.
The COSINE-100 experiment reports world-leading constraints on spin-dependent dark matter-proton scattering in the 1.75–2.25 GeV/c² mass range and sets new sub-GeV limits via the Migdal effect by achieving a record-low detection threshold of 3–4 photoelectrons, despite observing no statistically significant annual modulation signal.
This paper establishes Casimir geometry as an independent observable for probing short-range forces by demonstrating distinct geometric scaling between Yukawa interactions and the Casimir background, thereby deriving the first constraints from sphere-sphere and plate-plate geometries to set the most stringent bounds for interaction ranges below meters.
Using 140 fb of proton-proton collision data at TeV, the ATLAS experiment presents precise differential cross-section measurements for inclusive production to test Standard Model predictions, constrain parton distribution functions, and set improved limits on anomalous weak-boson self-interactions within an effective field theory framework.
This paper presents the first differential measurements of deuteron production spectra in inelastic p+p collisions at 158 GeV/c by the NA61/SHINE experiment, providing essential data to refine models of cosmic antinuclei production for dark matter searches.
This paper presents the first sterile neutrino oscillation search by the ICARUS detector using the Booster Neutrino Beam, finding no statistically significant muon neutrino disappearance at the 600-meter baseline and setting 90% C.L. exclusion contours, while highlighting that the result is currently systematics-limited and will be strengthened by future combined analyses with the SBND detector.
The CYGNO collaboration is advancing a novel gaseous Time Projection Chamber with optical readout to detect light Dark Matter particles, having successfully validated its 3D tracking capabilities with the LIME prototype and now preparing to deploy the scalable 0.4 m³ CYGNO-04 demonstrator in 2026.
This paper proposes using magnetically levitated superconductors to detect ultra-light dark gravitons in the dHz to kHz range, finding that while their sensitivity to matter couplings is limited compared to existing experiments, they could serve as highly sensitive laboratory probes for dark-graviton couplings to electromagnetism.
Using 20.3 fb⁻¹ of data collected by the BESIII detector, a search for the radiative decays and yielded no significant signals, resulting in the first experimental upper limits on their branching fractions and providing the first test of the Vector Meson Dominance mechanism in these charmed meson decays.
This paper investigates the potential of the future 100 TeV FCC-hh collider to discover or exclude heavy axion-like particles (ALPs) via light-by-light scattering in pp, pPb, and PbPb collisions, demonstrating that the facility offers significant sensitivity to ALP masses up to the TeV scale compared to current LHC bounds.
This paper presents a catalog of dark matter-nucleon scattering cross sections for various mediator types and derives projected constraints on sub-GeV boosted dark matter for the COSINUS experiment, demonstrating its potential to probe light dark matter masses despite higher energy thresholds.