2160 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 comprehensive CMS analysis that combines top quark, Higgs boson, electroweak, and QCD measurements, along with LEP and SLC data, to constrain 64 Wilson coefficients both individually and through a simultaneous fit to 42 linear combinations within an Effective Field Theory framework.
The ATLAS experiment utilized top quark pair spin correlation measurements from 13 TeV proton-proton collisions at the LHC to observe quantum entanglement, a fundamental property of quantum mechanics.
This paper presents results from ATLAS and CMS experiments using 13 TeV proton-proton collision data to search for charged lepton flavour violation, baryon number violation, and neutral heavy leptons, while also reporting a precise measurement of lepton flavour universality in top quark-antiquark events.
This paper summarizes the diverse experimental results presented at the 17th international workshop on top quark physics (TOP2024) and outlines future directions for research in the field.
This paper provides an overview of current and future machine learning applications in top quark physics, highlighting diverse algorithms for event reconstruction and statistical inference used by the ATLAS and CMS collaborations.
This paper presents the design and operation of a millimeter-wave dielectric haloscope that established new constraints on dark photon dark matter in the 387.72–391.03 μeV mass range, improving existing limits on the kinetic mixing parameter by two orders of magnitude.
Using 13 TeV LHC dilepton resonance data, this study establishes new lower mass bounds for the boson in the Minimal Left-Right Symmetric Model across a range of gauge couplings, thereby constraining an unexplored parameter space where the right-handed neutrino is heavier than the boson.
This paper proposes a low-reheating freeze-in dark matter model featuring a stable dark photon and a long-lived pseudo-scalar mediator, demonstrating that LHC searches for displaced photons from Higgs decays can effectively constrain the model's parameter space and exclude thermalized mediators consistent with observed relic abundance.
This paper investigates two benchmark models featuring radiative tau mass generation that predict sizable anomalous magnetic moments and electric dipole moments for the tau lepton, with one model yielding particularly large EDM signals within the reach of future Belle II measurements.
Using 140 fb⁻¹ of 13 TeV proton-proton collision data collected by the ATLAS detector, this study presents the first measurement of the top-quark Yukawa coupling via the invariant mass spectrum in the lepton+jets channel, finding results consistent with the Standard Model and setting a 95% confidence level upper limit of .