Search for supersymmetry in the all-hadronic final state using top quark tagging in pp collisions at s =13 TeV

Sirunyan, A. M. and Tumasyan, A. R. and Adam, Wolfgang and Asilar, Ece and Bergauer, Thomas and Md. Ali, Mohd. Adli and UNSPECIFIED (2017) Search for supersymmetry in the all-hadronic final state using top quark tagging in pp collisions at s =13 TeV. Physical Review D, 96 (1). 012004-1-012004-32. ISSN 2470-0010 E-ISSN 2470-0029

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Abstract

A search is presented for supersymmetry in all-hadronic events with missing transverse momentum and tagged top quarks. The data sample was collected with the CMS detector at the LHC and corresponds to an integrated luminosity of 2.3 fb−1 of proton-proton collisions at a center-of-mass energy of 13 TeV. Search regions are defined using the properties of reconstructed jets, the multiplicity of bottom and top quark candidates, and an imbalance in transverse momentum. With no statistically significant excess of events observed beyond the expected contributions from the standard model, we set exclusion limits at 95% confidence level on the masses of new particles in the context of simplified models of direct and gluino-mediated top squark production. For direct top squark production with decays to a top quark and a neutralino, top squark masses up to 740 GeV and neutralino masses up to 240 GeV are excluded. Gluino masses up to 1550 GeV and neutralino masses up to 900 GeV are excluded for a gluinomediated production case, where each of the pair-produced gluinos decays to a top-antitop quark pair and a neutralino.

Item Type:	Article (Journal)
Additional Information:	7861/63124
Uncontrolled Keywords:	Search for supersymmetry ; All-hadronic final state; Top quark tagging; pp collisions at ffiffi; s p = 13 TeV
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 Kulliyyah of Science > Department of Physics
Depositing User:	Dr Mohd Adli MD Ali
Date Deposited:	30 Aug 2019 13:36
Last Modified:	30 Aug 2019 13:36
URI:	http://irep.iium.edu.my/id/eprint/63124

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