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    Search for the Production of Narrow tb̅ Resonances in 1.9  fb-1 of pp̅ Collisions at √s=1.96  TeV

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    Identificadores
    URI: http://hdl.handle.net/10902/2081
    DOI: 10.1103/PhysRevLett.103.041801
    ISSN: 0031-9007
    ISSN: 1079-7114
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    Author
    Aaltonen, Timo Antero; Akimoto, Takashi; Álvarez González, Bárbara; Amerio, Silvia; Amidei, Dante; Anastassov, Anton; Annovi, Alberto; Antos, Jaroslav; Apollinari, Giorgio; Apresyan, Artur; Casal Laraña, Bruno; Cuevas Maestro, Francisco Javier; Gómez Gramuglio, Gervasio; Rodrigo Anoro, TeresaAutoridad Unican; Ruiz Jimeno, AlbertoAutoridad Unican; Scodellaro, Luca; Vila Alvarez, Ivan; Vilar Cortabitarte, RocíoAutoridad Unican; Arisawa, Tetsuo; [et al.]
    Date
    2009-07-20
    Derechos
    © 2009 The American Physical Society
    Publicado en
    Physical Review Letters, vol. 103 iss. 4, art. num. 041801 (2009)
    Publisher
    American Physical Society
    Enlace a la publicación
    http://dx.doi.org/10.1103/PhysRevLett.103.041801
    Abstract:
    We present new limits on resonant tb̅ production in pp̅ collisions at √s=1.96  TeV, using 1.9  fb-1 of data recorded with the CDF II detector at the Fermilab Tevatron. We reconstruct a candidate tb̅ mass in events with a lepton, neutrino candidate, and two or three jets, and search for anomalous tb̅ production as modeled by W′→tb̅ . We set a new limit on a right-handed W′ with standard model-like coupling, excluding any mass below 800  GeV/c2 at 95% C.L. The cross section for any narrow, resonant tb̅ production between 750 and 950  GeV/c2 is found to be less than 0.28 pb at 95% C.L. We also present an exclusion of the W′ coupling strength versus W′ mass over the range 300–950  GeV/c2.
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    UNIVERSIDAD DE CANTABRIA

    Repositorio realizado por la Biblioteca Universitaria utilizando DSpace software
    Contact Us | Send Feedback
    Metadatos sujetos a:licencia de Creative Commons Reconocimiento 3.0 España