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CMS-EXO-10-018 ; CERN-PH-EP-2011-009
Search for a Heavy Bottom-like Quark in pp Collisions at $\sqrt{s}$ = 7 TeV
Phys. Lett. B 701 (2011) 204-223
Abstract: A search for pair-produced bottom-like quarks in pp collisions at $\sqrt{s}$ = 7 TeV is conducted with the CMS experiment at the LHC. The decay b' to tW is considered in this search. The b' b'-bar to tW- t-bar W+ 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 inverse picobarns, no excess above the standard model background predictions is observed and a b' quark with a mass between 255 and 361 GeV/c2 is excluded at the 95% confidence level.
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