Title
Inclusive search for a vector-like T quark with charge <tex>$\frac{2}{3}$</tex> in pp collisions at <tex>$\sqrt{s}$</tex> = 8 TeV Inclusive search for a vector-like T quark with charge <tex>$\frac{2}{3}$</tex> in pp collisions at <tex>$\sqrt{s}$</tex> = 8 TeV
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
article
Publication
Amsterdam ,
Subject
Physics
Source (journal)
Physics letters: B. - Amsterdam, 1967, currens
Volume/pages
729(2014) , p. 149-171
ISSN
0370-2693
ISI
000332436500026
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
A search is performed for a massive new vector-like quark T, with charge 2/3, that is pair produced together with its antiparticle in proton-proton collisions. The data were collected by the CMS experiment at the Large Hadron Collider in 2012 at root s = 8 TeV and correspond to an integrated luminosity of 19.5 fb(-1). The T quark is assumed to decay into three different final states, bW, tZ, and tH. The search is carried out using events with at least one isolated lepton. No deviations from standard model expectations are observed, and lower limits are set on the T quark mass at 95% confidence level. The lower limit lies between 687 and 782 GeV for all possible values of the branching fractions into the three different final states assuming strong production. These limits are the most stringent constraints to date on the existence of such a quark. (C) Published by Elsevier B.V.
Full text (open access)
https://repository.uantwerpen.be/docman/irua/f0b843/9221.pdf
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