PoS - Proceedings of Science
Volume 390 - 40th International Conference on High Energy physics (ICHEP2020) - Posters: Beyond the Standard Model
Search for Scalar Leptoquark Pair Production Decaying into Top-Quarks and Leptons at √s = 13 TeV with ATLAS detector
V.W.S. Wong
Full text: Not available
Abstract
This contribution presents a search for pair-produced scalar leptoquarks decaying to leptons and hadronically decaying top quarks at the LHC using 139 fb$^{-1}$ of proton$-$proton collision data collected with the ATLAS detector at $\sqrt{s}=13$ TeV. Leptoquarks are predicted by various extensions of the Standard Model to draw the similarity between the quark and lepton sectors, and they provide a promising explanation for anomalies observed in both the lepton universality tests in $B$ decays and the muon anomalous magnetic moment measurement. Searches for pair-produced scalar leptoquarks decaying into electron$-$top or muon$-$top pairs have been performed in final states with exactly two leptons. A parameterized gradient boosted decision tree approach is used to suppress the Standard Model backgrounds. No excess over the Standard Model prediction was observed. Exclusion limits on the leptoquark masses are set at 1480 GeV and 1470 GeV for the electron and muon channel, respectively.
How to cite

Metadata are provided both in "article" format (very similar to INSPIRE) as this helps creating very compact bibliographies which can be beneficial to authors and readers, and in "proceeding" format which is more detailed and complete.

Open Access
Creative Commons LicenseCopyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.