We present a search for the standard model Higgs boson produced with a Z boson in 4.1 fb-1 of data collected with the CDF II detector at the Tevatron. In events consistent with the decay of the Higgs boson to a bottom-quark pair and the Z boson to electrons or muons, we set 95% credibility level upper limits on the ZH production cross section times the H --> bb-bar branching ratio. Improved analysis methods enhance signal sensitivity by 20% relative to previous searches beyond the gain due to the larger data sample. At a Higgs boson mass of 115 GeV/c2 we set a limit of 5.9 times the standard model value.

T. AALTONEN, B.ALVAREZ GONZALEZV, S. AMERIO, D. AMIDEI, A. ANASTASSOV, A. ANNOVI, et al. (2010). Improved Search for a Higgs Boson Produced in Association with Z -> l+ l- in p anti-p Collisions at s**(1/2)=1.96 TeV. PHYSICAL REVIEW LETTERS, 105, 251802-1-251802-7 [10.1103/PhysRevLett.105.251802].

Improved Search for a Higgs Boson Produced in Association with Z -> l+ l- in p anti-p Collisions at s**(1/2)=1.96 TeV

CASTRO, ANDREA;DENINNO, MARIA MADDALENA;MARGAROLI, FABRIZIO;MAZZANTI, PAOLO;MOGGI, NICCOLO';MUSSINI, MANUEL;RIMONDI, FRANCO;ZUCCHELLI, STEFANO
2010

Abstract

We present a search for the standard model Higgs boson produced with a Z boson in 4.1 fb-1 of data collected with the CDF II detector at the Tevatron. In events consistent with the decay of the Higgs boson to a bottom-quark pair and the Z boson to electrons or muons, we set 95% credibility level upper limits on the ZH production cross section times the H --> bb-bar branching ratio. Improved analysis methods enhance signal sensitivity by 20% relative to previous searches beyond the gain due to the larger data sample. At a Higgs boson mass of 115 GeV/c2 we set a limit of 5.9 times the standard model value.
2010
T. AALTONEN, B.ALVAREZ GONZALEZV, S. AMERIO, D. AMIDEI, A. ANASTASSOV, A. ANNOVI, et al. (2010). Improved Search for a Higgs Boson Produced in Association with Z -> l+ l- in p anti-p Collisions at s**(1/2)=1.96 TeV. PHYSICAL REVIEW LETTERS, 105, 251802-1-251802-7 [10.1103/PhysRevLett.105.251802].
T. AALTONEN; B.ALVAREZ GONZALEZV; S. AMERIO; D. AMIDEI; A. ANASTASSOV; A. ANNOVI; J. ANTOS; G. APOLLINARI; J.A. APPEL; A. APRESYAN; T. ARISAWA; A. AR...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/97380
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