Search for third-generation scalar leptoquarks decaying to a top quark and a tau lepton at root s=13 TeV

Sirunyan, A.M. and Tumasyan, A. R. and Adam, Wolfgang and Ambrogi, Federico and Asilar, Ece and Md. Ali, Mohd. Adli (2018) Search for third-generation scalar leptoquarks decaying to a top quark and a tau lepton at root s=13 TeV. European Physical Journal C, 78 (9). pp. 1-26. ISSN 1434-6044 E-ISSN 1434-6052

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Abstract

A search for pair production of heavy scalar leptoquarks (LQs), each decaying into a top quark and a τ lepton, is presented. The search considers final states with an electron or a muon, one or two τ leptons that decayed to hadrons, and additional jets. The data were collected in 2016 in proton–proton collisions at √s = 13 TeV with the CMS detector at the LHC, and correspond to an integrated luminosity of 35.9 fb−1. No evidence for pair production of LQs is found. Assuming a branching fraction of unity for the decay LQ → tτ , upper limits on the production cross section are set as a function of LQ mass, excluding masses below 900 GeV at 95% confidence level. These results provide the most stringent limits to date on the production of scalar LQs that decay to a top quark and a τ lepton.

Item Type:	Article (Journal)
Additional Information:	7861/70515
Uncontrolled Keywords:	Search for third-generation scalar; Leptoquarks; Top quark and a τ lepton; √s = 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:	08 Feb 2019 10:13
Last Modified:	15 Jul 2019 09:25
URI:	http://irep.iium.edu.my/id/eprint/70515

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