PoS - Proceedings of Science
Volume 364 - European Physical Society Conference on High Energy Physics (EPS-HEP2019) - Searches for New Physics
Search for direct top squark pair production in the 3-body decay mode with one-lepton final states in √s=13 TeV pp collisions with the ATLAS detector
Z.P. Arrubarrena Tame* on behalf of the ATLAS collaboration
*corresponding author
Full text: pdf
Pre-published on: June 16, 2020
Published on:
Natural supersymmetry suggests a light top squark, possibly within the discovery reach of the LHC. These proceedings presents the latest result of an analysis targeting a compressed region of the top squark phase space where the mass difference between the top squark and the lightest neutralino is smaller than the top-quark mass, using $pp$ collision data recorded by the ATLAS detector over the full Run 2 of the LHC. A machine learning technique was employed in the analysis to improve the discrimination of signals from
backgrounds dominated by the $t\bar{t}$ process.
No significant deviation from the predicted Standard Model background is observed, and limits at 95% confidence level on the supersymmetric benchmark model are set, excluding top squark masses up to 720 GeV with neutralino masses up to 580 GeV.
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.