Počet záznamů: 1

Combined Tevatron upper limit on gg->H->W+W- and constraints on the Higgs boson mass in fourth-generation fermion models

  1. 1.
    0365376 - FZU-D 2012 RIV US eng J - Článek v odborném periodiku
    Aaltonen, T. - Abazov, V. M. - Abbott, B. - Kupčo, Alexander - Lokajíček, Miloš
    Combined Tevatron upper limit on gg->H->W+W- and constraints on the Higgs boson mass in fourth-generation fermion models.
    Physical Review D: Particles, Fields, Gravitation and Cosmology. Roč. 82, č. 1 (2010), 011102/1-011102/17 ISSN 1550-7998
    Grant CEP: GA MŠk LC527; GA MŠk LA08047
    Výzkumný záměr: CEZ:AV0Z10100502
    Klíčová slova: D0 * CDF Collaboration * Higgs boson * luminosity
    Kód oboru RIV: BF - Elementární částice a fyzika vys. energií
    Impakt faktor: 4.964, rok: 2010
    http://prd.aps.org/abstract/PRD/v82/i1/e011102

    We combine results from searches by the CDF and D0 collaborations for a standard model Higgs boson (H) in the process gg-->H-->W+W- in ppbar collisions at the Fermilab Tevatron Collider at √s=1.96 TeV. With 4.8 fb-1 of integrated luminosity analyzed at CDF and 5.4 fb-1 at D0, the 95% confidence level upper limit on δ (gg-->H)xB(H-->W+W-) is 1.75 pb at mH=120GeV, 0.38 pb at mH=165GeV, and 0.83 pb at mH=200GeV. Assuming the presence of a fourth sequential generation of fermions with large masses, we exclude at the 95% confidence level a standard-model-like Higgs boson with a mass between 131 and 204 GeV.
    Trvalý link: http://hdl.handle.net/11104/0200631