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Search for heavy, top-like quark pair production in the dilepton final state in pp collisions at √s=7 TeV
Journal article   Open access   Peer reviewed

Search for heavy, top-like quark pair production in the dilepton final state in pp collisions at √s=7 TeV

Serguei Chatrchyan, Lukas Bäni, Pierluigi Bortignon, Marco A Buchmann, Bruno Casal, Nicolas Chanon, Zhiling Chen, Amanda Deisher, Günther Dissertori, Michael Dittmar, …
Physics letters. B, Vol.716(1), pp.103-121
09/17/2012
DOI: 10.1016/j.physletb.2012.07.059
url
https://doi.org/10.1016/j.physletb.2012.07.059View
Published (Version of record) Open Access

Abstract

The results of a search for pair production of a heavy, top-like quark, t ', in the decay mode t't-'→bW+b-W-→bℓ+νb-ℓ-ν- are presented. The search is performed with a data sample corresponding to an integrated luminosity of 5.0fb -1 in pp collisions at a center-of-mass energy of 7 TeV, collected by the CMS experiment at the LHC. The observed number of events agrees with the expectation from standard model processes, and no evidence of t't-' production is found. Upper limits on the production cross section as a function of t ' mass are presented, and t ' masses below 557GeV/c 2 are excluded at the 95% confidence level.
Physics Dilepton Fourth generation like Top Tprime

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