1403 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 investigates a scotogenic extension of the Standard Model with two inert doublets and three singlet Majorana fermions, identifying viable parameter spaces for radiative neutrino mass generation and dark matter while revealing that approximately 60% of these regions are excluded by recent CMS measurements of the boson mass due to constraints on the oblique parameter .
By re-analyzing data from the Taiwan Axion Search Experiment with Haloscope (TASEH) while accounting for scanning timing information, the authors derive world-leading constraints on dark photon dark matter that exceed naive rescaling limits by a factor of two and demonstrate the critical importance of avoiding magnetic-field-only vetoes to prevent discarding valid dark photon signals.
This paper enhances the sensitivity of searches for vectorlike top partners produced with a Standard Model top quark by employing a multivariate analysis that leverages jet substructure techniques and event shape observables across both fixed and dynamically varying jet radii to effectively handle boosted decay scenarios.
This paper proposes a method to test the unitarity of the lepton mixing matrix using long-baseline neutrino oscillation experiments by directly extracting matrix elements from energy-dependent probabilities, demonstrating that combining T2HK and a future neutrino factory can reveal unitarity violations in a four-generation model without relying on specific parametrizations.
This paper presents an Effective Field Theory study of the process at the Future Circular Collider (FCC-$hh$), demonstrating its unique capability to probe anomalous and couplings through a comprehensive collider analysis of the final state.
This paper proposes a TeV-scale baryogenesis scenario based on Dirac leptogenesis with resonantly enhanced CP asymmetry, which predicts observable decay asymmetries at colliders and a singlet scalar dark matter candidate consistent with thermal relic abundance.
This paper demonstrates that incorporating infrared and collinear safety along with E(2) and O(2) equivariance into graph neural networks for quark-gluon discrimination enhances model stability and interpretability by directly aligning learned latent representations with established QCD observables like Energy Flow Polynomials.
This paper investigates the discovery potential of a long-lived pseudoscalar in the type-I two-Higgs-doublet model at the LHC, demonstrating that while Run-2 data has already excluded a significant portion of the parameter space for GeV via displaced-vertex signatures, the high-luminosity LHC will be capable of probing broader regions.
The CDEX-10 experiment at the China Jinping Underground Laboratory reports the first search for ultraheavy dark matter using p-type point-contact germanium detectors, setting the most stringent constraints to date on spin-independent scattering cross sections for masses between and GeV based on an analysis of 205.4 kgday of data with no observed excess above background.
Using 15 years of data from the ANTARES neutrino telescope, this study analyzes the full all-flavor dataset to test Galactic cosmic ray emission models, ultimately deriving upper limits on the diffuse neutrino flux that are consistent with results from other experiments but do not provide stringent constraints on the tested models.