Search for a Higgs boson in the diphoton final state using the full CDF data set from p¯p collisions at √ s = 1.96 TeV

0389092 - FZÚ 2013 RIV NL eng J - Článek v odborném periodiku
Aaltonen, T. - Gonzalez, B.A. - Amerio, S. - Lysák, Roman … celkem 474 autorů
Search for a Higgs boson in the diphoton final state using the full CDF data set from p¯p collisions at √ s = 1.96 TeV.
Physics Letters. B. Roč. 717, 1-3 (2012), s. 173-181. ISSN 0370-2693. E-ISSN 1873-2445
Grant CEP: GA MŠMT LC527
Výzkumný záměr: CEZ:AV0Z10100502
Klíčová slova: Higgs particle * diphoton final state * gauge boson * Batavia TEVATRON Coll * CDF
Kód oboru RIV: BF - Elementární částice a fyzika vys. energií
Impakt faktor: 4.569, rok: 2012
http://arxiv.org/abs/arXiv:1207.6386

A search for a narrow Higgs boson resonance in the diphoton mass spectrum is presented based on data corresponding to 10 fb-1 of integrated luminosity from proton-antiproton collisions at /surds = 1.96 TeV collected by the CDF experiment. In addition to searching for a resonance in the diphoton mass spectrum, we employ a multivariate discriminant technique for the first time in this channel at CDF. No evidence of signal is observed, and upper limits are set on the cross section times branching ratio of the resonant state as a function of Higgs boson mass. The limits are interpreted in the context of the standard model with an expected (observed) limit on the cross section times branching ratio of 9.9 (17.0) times the standard model prediction at the 95% credibility level for a Higgs boson mass of 125 GeV/c2. Moreover, a Higgs boson with suppressed couplings to fermions is excluded for masses below 114 GeV/c2 at the 95% credibility level.
Trvalý link: http://hdl.handle.net/11104/0217976