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

CMS Collaboration;Quertenmont, Loïc;Chatrchyan, Serguei;Basegmez, Suzan;Schul, Nicolas;et.al.
(2011) Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics — Vol. 701, n° 2, p. 204-223 (2011)

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Authors
  • CMS Collaboration-
    Author
  • Author
  • Chatrchyan, Serguei-
    Author
  • Basegmez, SuzanUCLouvain
    Author
  • Author
  • Caudron, JulienUCLouvain
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  • Ceard, LudivineUCLouvain
    Author
  • Author
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  • Favart, DenisUCLouvain
    Author
  • Forthomme, LaurentUCLouvain
    Author
  • Author
  • Grégoire, GhislainUCLouvain
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  • Hollar, JonathanUCLouvain
    Author
  • Author
  • Liao, JunhuiUCLouvain
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  • Militaru, OtiliaUCLouvain
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  • Nuttens, ClaudeUCLouvain
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  • Ovyn, SéverineUCLouvain
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  • Pagano, DavideUCLouvain
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  • Pin, ArnaudUCLouvain
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  • Piotrzkowski, KrzysztofUCLouvain
    Author
  • Schul, NicolasUCLouvain
    Author
  • et. al.
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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/c^2 is excluded at the 95% confidence level.
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Citations

CMS Collaboration, Quertenmont, L., Chatrchyan, S., Basegmez, S., Bruno, G., Caudron, J., Ceard, L., Cortina Gil, E., de Favereau de Jeneret, J., Delaere, C., Favart, D., Forthomme, L., Giammanco, A., Grégoire, G., Hollar, J., Lemaitre, V., Liao, J., Militaru, O., Nuttens, C., et al. (2011). Search for a Heavy Bottom-like Quark in pp Collisions at sqrt(s) = 7 TeV. Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics, 701(2), 204-223. https://doi.org/10.1016/j.physletb.2011.05.074 (Original work published 2011)