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Search for a heavy bottom-like quark in pp collisions at √s = 7 TeV

Author(s)
Wyslouch, Boleslaw; Bendavid, Joshua L.; Busza, Wit; Butz, Erik M.; Cali, Ivan Amos; Chan, M.; Everaerts, Pieter Bruno Bart; Gomez-Ceballos, Guillelmo; Goncharov, Maxim; Hahn, Kristian Allan; Kim, Y.; Klute, Markus; Li, W.; Ma, Teng; Nahn, Steven; Paus, Christoph M. E.; Ralph, Duncan Kelley; Rudolph, Matthew Scott; Stephans, George S. F.; Sung, Kevin Kai Hong; Wenger, Edward Allen; Yilmaz, Yetkin; Yoon, A. S.; Zanetti, M.; Zanetti, Marco; Alver, Burak Han; Bauer, Gerry P; Dutta, Valentina; Harris, Philip Coleman; Lee, Yen-Jie; Loizides, Constantinos; Luckey Jr, P David; Roland, Christof E; Roland, Gunther M; Sumorok, Konstanty C; Xie, Si; Yang, Mingming; ... Show more Show less
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Abstract
A search for pair-produced bottom-like quarks in pp collisions at √s = 7 TeV is conducted with the CMS experiment at the LHC. The decay b′→tW is considered in this search. The b′[bar over b′] →tW[superscript -][bar over t]W[superscript +] process can be identified by the distinctive signature of trileptons and same-sign dileptons. With a data sample corresponding to an integrated luminosity of 34 pb[superscript −1], no excess above the standard model background predictions is observed and a b′ quark with a mass between 255 and 361 [GeV over c[superscript 2]] is excluded at the 95% confidence level.
Date issued
2011-06
URI
http://hdl.handle.net/1721.1/92461
Department
Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Laboratory for Nuclear Science; Massachusetts Institute of Technology. School of Science
Journal
Physics Letters B
Publisher
Elsevier
Citation
Chatrchyan, S., V. Khachatryan, A.M. Sirunyan, A. Tumasyan, W. Adam, T. Bergauer, M. Dragicevic, et al. “Search for a Heavy Bottom-Like Quark in Pp Collisions at √s = 7 TeV.” Physics Letters B 701, no. 2 (July 2011): 204–223. © 2011 CERN
Version: Final published version
ISSN
03702693

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