A search for pair-produced bottom-like quarks in pp collisions at sort(s)=7TeV is conducted with the CMS experiment at the LHC. The decay b′→tW is considered in this search. The b'b'bar->tWtW 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−1, 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.
Search for a heavy bottom-like quark in pp collisions at sqrt(s)=7TeV
TOSI, SILVANO;
2011-01-01
Abstract
A search for pair-produced bottom-like quarks in pp collisions at sort(s)=7TeV is conducted with the CMS experiment at the LHC. The decay b′→tW is considered in this search. The b'b'bar->tWtW 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−1, 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.File in questo prodotto:
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