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    Combination of searches for the Higgs boson using the full CDF data set

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    URI: http://hdl.handle.net/10902/6353
    DOI: 10.1103/PhysRevD.88.052013
    ISSN: 1550-7998
    ISSN: 1550-2368
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    Author
    Aaltonen, Timo Antero; Amerio, Silvia; Amidei, Dante; Anastassov, Anton; Annovi, Alberto; Antos, Jaroslav; Apollinari, Giorgio; Appel, Jeffrey A.; Arisawa, Tetsuo; Artikov, A.; Asaadi, Jonathan Abraham; Casal Laraña, Bruno; Cuevas Maestro, Francisco Javier; Gómez Gramuglio, Gervasio; Palencia Cortezón, José Enrique; Ruiz Jimeno, AlbertoAutoridad Unican; Scodellaro, Luca; Vilar Cortabitarte, RocíoAutoridad Unican; Vizán García, Jesús ManuelAutoridad Unican; [et al.]
    Date
    2013-09
    Derechos
    © 2013 American Physical Society
    Publicado en
    Physical review. D, Particles, fields, gravitation, and cosmology, vol. 88, num. 5, art. num. 052013, (2013)
    Publisher
    American Physical Society
    Enlace a la publicación
    http://dx.doi.org/10.1103/PhysRevD.88.052013
    Abstract:
    We present a combination of searches for the standard model Higgs boson using the full CDF run II data set, which corresponds to an integrated luminosity of 9.45–10.0  fb−1 collected from s√=1.96  TeV pp¯ collisions at the Fermilab Tevatron. The searches consider Higgs boson production from gluon-gluon fusion, vector-boson fusion, and associated production with either a W or Z boson or a tt¯ pair. Depending on the production mode, Higgs boson decays to W+W−, ZZ, bb¯, τ+τ−, and γγ are examined. We search for a Higgs boson with masses (mH) in the range 90–200  GeV/c2. In the absence of a signal, we expect based on combined search sensitivity to exclude at the 95% credibility level the mass regions 90<mH<94  GeV/c2, 96<mH<106  GeV/c2, and 153<mH<175  GeV/c2. The observed exclusion regions are 90<mH<102  GeV/c2 and 149<mH<172  GeV/c2. A moderate excess of signal-like events relative to the background expectation at the level of 2.0 standard deviations is present in the data for the mH=125  GeV/c2 search hypothesis. We also present interpretations of the data within the context of a fermiophobic model and an alternative standard model incorporating a fourth generation of fermions. Finally, for the hypothesis of a new particle with mass 125  GeV/c2, we constrain the coupling strengths of the new particle to W± bosons, Z bosons, and fermions.
    Collections to which it belong
    • D15 Artículos [352]
    • D52 Artículos [651]

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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