Search for B −L R-parity-violating top squarks in √s=13 TeV pp collisions with the ATLAS experiment

DeSanto, Antonella, Cerri, Alessandro, Allbrooke, Benedict, Asquith, Lily, Shaw, Kate, Suruliz, Kerim, Sutton, Mark, Vivarelli, Iacopo and The ATLAS Collaboration, (2018) Search for B −L R-parity-violating top squarks in √s=13 TeV pp collisions with the ATLAS experiment. Physical Review D, 97 (3). ISSN 2470-0010

[img] PDF - Published Version
Available under License Creative Commons Attribution.

Download (1MB)

Abstract

A search is presented for the direct pair production of the stop, the supersymmetric partner of the top quark, that decays through an R-parity-violating coupling to a final state with two leptons and two jets, at least one of which is identified as a b-jet. The data set corresponds to an integrated luminosity of 36.1 fb−1 of proton-proton collisions at a center-of-mass energy of √s=13 TeV, collected in 2015 and 2016 by the ATLAS detector at the LHC. No significant excess is observed over the Standard Model background, and exclusion limits are set on stop pair production at a 95% confidence level. Lower limits on the stop mass are set between 600 GeV and 1.5 TeV for branching ratios above 10% for decays to an electron or muon and a b-quark.

Item Type: Article
Schools and Departments: School of Mathematical and Physical Sciences > Physics and Astronomy
Subjects: Q Science > QC Physics > QC0770 Nuclear and particle physics. Atomic energy. Radioactivity > QC0793 Elementary particle physics
Depositing User: Iacopo Vivarelli
Date Deposited: 19 Feb 2018 09:37
Last Modified: 19 Feb 2018 09:37
URI: http://sro.sussex.ac.uk/id/eprint/73638

View download statistics for this item

📧 Request an update