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

• Main Authors: Wyslouch, Boleslaw (Contributor), Alver, B. (Contributor), Bauer, Gerry P. (Contributor), Bendavid, Joshua L. (Contributor), Busza, Wit (Contributor), Butz, Erik M. (Contributor), Cali, Ivan Amos (Contributor), Chan, M. (Contributor), Dutta, V. (Contributor), Everaerts, Pieter Bruno Bart (Contributor), Gomez-Ceballos, Guillelmo (Contributor), Goncharov, Maxim (Contributor), Hahn, Kristian Allan (Contributor), Harris, P. (Contributor), Kim, Y. (Contributor), Klute, Markus (Contributor), Lee, Y.-J (Contributor), Li, W. (Contributor), Loizides, C. (Contributor), Luckey, P. David, Jr (Contributor), Ma, Teng (Contributor), Nahn, Steven (Contributor), Paus, Christoph M. E. (Contributor), Ralph, Duncan Kelley (Contributor), Roland, Christof E. (Contributor), Roland, Gunther M. (Contributor), Rudolph, Matthew Scott (Contributor), Stephans, George S. F. (Contributor), Sumorok, Konstanty C. (Contributor), Sung, Kevin Kai Hong (Contributor), Wenger, Edward Allen (Contributor), Xie, S. (Contributor), Yang, M. (Contributor), Yilmaz, Yetkin (Contributor), Yoon, A. S. (Contributor), Zanetti, M. (Author), Zanetti, Marco (Contributor)
• Other Authors: Massachusetts Institute of Technology. Department of Physics (Contributor), Massachusetts Institute of Technology. Laboratory for Nuclear Science (Contributor), Massachusetts Institute of Technology. School of Science (Contributor)
• Format: Article
• Language: English
• Published: Elsevier, 2014-12-23T16:25:53Z.
• Subjects: Article
• Online Access: Get fulltext

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.
United States. Dept. of Energy
National Science Foundation (U.S.)