Search for top quark partners with charge 5/3 in proton-proton 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 (2017) Search for top quark partners with charge 5/3 in proton-proton collisions at √s=13 TeV. Journal of High Energy Physics, 2017 (8). pp. 1-42. ISSN 11266708 E-ISSN 1029-8479

	PDF - Published Version Restricted to Repository staff only Download (1MB) | Request a copy
Preview	PDF (Scopus) - Supplemental Material Download (559kB) | Preview

Abstract

A search for the production of heavy partners of the top quark with charge 5/3 (X5/3 ) decaying into a top quark and a W boson is performed with a data sample corresponding to an integrated luminosity of 2.3 fb−1 , collected in proton-proton collisions at a center-of-mass energy of 13 TeV with the CMS detector at the CERN LHC. Final states with either a pair of same-sign leptons or a single lepton, along with jets, are considered. No significant excess is observed in the data above the expected standard model background contribution and an X5/3 quark with right-handed (left-handed) couplings is excluded at 95% confidence level for masses below 1020 (990) GeV. These are the first limits based on a combination of the same-sign dilepton and the single-lepton final states, as well as the most stringent limits on the X5/3 mass to date.

Item Type:	Article (Journal)
Additional Information:	7861/63128
Uncontrolled Keywords:	Beyond standard model, Exotics, Hadron-hadron scattering (experiments), Top physics
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 15:58
Last Modified:	30 Aug 2019 15:58
URI:	http://irep.iium.edu.my/id/eprint/63128

Actions (login required)

View Item