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Search for heavy bottom-like quarks in 4.9 fb-1 of pp collisions at √s = 7 TeV

Chatrchyan, S ; Sharif University of Technology

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  1. Type of Document: Article
  2. DOI: 10.1007/JHEP05(2012)123
  3. Abstract:
  4. Results are presented from a search for heavy bottom-like quarks, pair-produced in pp collisions at √s = 7TeV, undertaken with the CMS experiment at the LHC. The b′ quarks are assumed to decay exclusively to tW. The b′b̄′ → tW-t̄W+ process can be identified by its distinctive signatures of three leptons or two leptons of same charge, and at least one b-quark jet. Using a data sample corresponding to an integrated luminosity of 4.9 fb-1, observed events are compared to the standard model background predictions, and the existence of b′ quarks having masses below 611 GeV/c2 is excluded at 95% confidence level
  5. Keywords:
  6. Hadron-Hadron Scattering
  7. Source: Journal of High Energy Physics ; 2012 ; 11266708 (ISSN)
  8. URL: http://link.springer.com/article/10.1007%2FJHEP05%282012%29123