Search for supersymmetric partners of electrons and muons in proton-proton collisions at root s=13 TeV

Sirunyan, A. M. and Tumasyan, A. R. and Adam, Wolfgang and Ambrogi, Federico and Aşilar, Ece and Md. Ali, Mohd. Adli (2019) Search for supersymmetric partners of electrons and muons in proton-proton collisions at root s=13 TeV. Physics Letters, Section B: nuclear, elementary particle and high-energy physics, 790. pp. 160-166. ISSN 0370-2693

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Abstract

A search for direct production of the supersymmetric (SUSY) partners of electrons or muons is presented in final states with two opposite-charge, same-flavour leptons (electrons and muons), no jets, and large missing transverse momentum. The data sample corresponds to an integrated luminosity of 35.9 fb−1 of proton-proton collisions at √s = 13 TeV, collected with the CMS detector at the LHC in 2016. The search uses the MT2 variable, which generalises the transverse mass for systems with two invisible objects and provides a discrimination against standard model backgrounds containing W bosons. The observed yields are consistent with the expectations from the standard model. The search is interpreted in the context of simplified SUSY models and probes slepton masses up to approximately 290, 400, and 450GeV, assuming right-handed only, left-handed only, and both right- and left-handed sleptons (mass degenerate selectrons and smuons), and a massless lightest supersymmetric particle. Limits are also set on selectrons and smuons separately. These limits show an improvement on the existing limits of approximately 150GeV.© 2019 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). Funded by SCOAP3.

Item Type:	Article (Journal)
Additional Information:	7861/70922
Uncontrolled Keywords:	CMS, Physics, SUS
Subjects:	Q Science > Q Science (General) Q Science > QC Physics
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Science
Depositing User:	Dr Mohd Adli MD Ali
Date Deposited:	07 Mar 2019 12:19
Last Modified:	07 Oct 2020 09:19
URI:	http://irep.iium.edu.my/id/eprint/70922

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