2129 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 establishes a theoretically consistent quantum field theory formalism for dark matter scattering with atomic bound electrons, demonstrating that relativistic calculations are essential and can reduce the scattering phase space and differential cross section by 30% to 50% compared to commonly used non-relativistic approximations.
This paper argues that detecting neutrinos from binary neutron star mergers requires future megaton-scale detectors with low energy thresholds, but such observations could uniquely probe the lightest neutrino mass with sensitivity surpassing current terrestrial and galactic supernova constraints by leveraging time-of-flight delays relative to gravitational wave signals.
Using the full Run 2 dataset of 140 fb collected by the ATLAS detector at 13 TeV, this study presents differential measurements of -channel single top and top antiquark production cross-sections, finding good agreement with theoretical predictions and setting constraints on the Wilson coefficient within an effective field theory framework.
Using QCD sum rules and the iterative dispersion relation method, this study investigates the and dibaryons, finding that the scalar states are lighter than their tensor counterparts and that while the bottom system may form bound states in the scheme, both systems are predicted to be much heavier in the on-shell scheme.
This paper proposes using ultra-peripheral Au+Au collision data from the PHENIX experiment at RHIC to search for GeV-scale axion-like particles via the resonant process, demonstrating sensitivity to previously unexplored mass and coupling regions.
This paper utilizes the constituent quark model to establish a comprehensive framework demonstrating that excited nucleon () and hyperon () resonances are the key drivers behind the first observed baryonic violation in the four-body decay , successfully reproducing the measured branching fraction and asymmetry.
This paper reports the fabrication, conditioning, and comprehensive characterization of locally manufactured Thick-GEM detectors in India, demonstrating their suitability for muography applications through high muon detection efficiency (up to 99.5%) and excellent spatial resolution (30 m).
This paper evaluates the shielding efficiency of water, HDPE, and boron-loaded HDPE for the ALARM neutrino detector, demonstrating through experiments and simulations that a 30-cm thickness of boron-loaded HDPE achieves over 95% shielding against both fast and thermal neutrons.
This paper presents global Bayesian limits on Majorana neutrino masses by combining latest neutrinoless double-beta decay experimental data with ab initio nuclear matrix elements, revealing that current experiments likely lack the sensitivity to probe the neutrino mass regime allowed by oscillation data while demonstrating that next-generation searches across four key isotopes could collectively cover the inverted mass ordering.
Using 138 fb of 13 TeV proton-proton collision data from the CMS detector, this study searches for -parity violating supersymmetry in single-lepton events with high jet and b-jet multiplicities by analyzing large-radius jet masses, finding no significant excess and excluding gluino masses below 1890 GeV at 95% confidence level.