1495 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 demonstrates that the High Luminosity LHC has sufficient sensitivity to exclude the remaining allowed parameter space of a generic Two Higgs Doublet Model with right-handed neutrino couplings, which was proposed to explain the observed anomalies via a charged Higgs boson.
This paper presents recent inclusive and differential measurements of top quark production in association with photons by the ATLAS and CMS collaborations, utilizing LHC data to test Standard Model predictions and probe potential modifications to top-photon couplings via effective field theory.
The ATLAS collaboration reports inclusive cross-section measurements for single-top and production at various LHC center-of-mass energies, along with derived observables like and nuclear modification factors, all of which show good agreement with Standard Model predictions.
The ATLAS collaboration measured the -channel single top-quark production cross sections in proton-proton collisions at TeV, obtaining precise values for top-quark and top-antiquark rates that were subsequently used to set limits on EFT operators and CKM matrix elements.
Using 140 fb of 13 TeV proton-proton collision data from the ATLAS detector, this study searches for flavour-changing neutral current interactions between the top quark and the Higgs boson in multilepton final states, setting observed upper limits on the branching ratios of and at and , respectively.
Using 140 fb of 13 TeV proton-proton collision data collected by the ATLAS detector, this study presents measurements of inclusive and differential cross-sections for top quark pair production with an associated photon, utilizing the photon transverse momentum distribution to constrain effective field theory operators related to the top quark's electroweak dipole moments.
Using the full Run 2 dataset at 13 TeV, the ATLAS Collaboration performed its first measurement of the inclusive cross-section for top-quark pair production in association with charm quarks, finding that while the results largely agree with various simulation predictions, all models underpredict the observed values.
This paper presents recent CMS measurements of inclusive and differential cross sections for top quark pair and single top quark production in proton-proton collisions at 5.02 TeV and 13.6 TeV, all of which are consistent with Standard Model predictions.
Using 140 fb⁻¹ of 13 TeV proton-proton collision data from the ATLAS detector, this paper presents a measurement of production in the decay channel that leverages transformer neural networks to significantly improve signal-background discrimination and Higgs transverse momentum reconstruction, resulting in an observed excess of 4.6 standard deviations over the background-only hypothesis.
This paper presents recent progress in calculating complete next-to-leading order (NLO) corrections for associated top-quark pair production with one or two isolated photons, specifically focusing on the simultaneous inclusion of higher-order effects and photon radiation in both production and decay processes to quantify their impact on realistic final states.