Search for a Heavy Bottom-like Quark in pp Collisions at sqrt(s) = 7 TeV

Details Search for a Heavy Bottom-like Quark in pp Collisions at sqrt(s) = 7 TeV Search for a Heavy Bottom-like Quark in pp Collisions at sqrt(s) = 7 TeV

2011-02-23

arxiv.org/abs/1102.4746v1

Phys. Lett. B 701 (2011) 204

Physics

High Energy Physics

High Energy Physics - Experiment

Scientific paper

10.1016/j.physletb.2011.05.074

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/c^2 is excluded at the 95% confidence level.

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