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EnglishWe present a search for associated production of the standard model (SM) Higgs boson and a Z boson where the Z boson decays to two leptons and the Higgs decays to a pair of b quarks in p anti-p collisions at the Fermilab Tevatron. We use event probabilities based on SM matrix elements to construct a likelihood function of the Higgs content of the data sample. In a CDF data sample corresponding to an integrated luminosity of 2.7 fb-1 we see no evidence of a Higgs boson with a mass between 100 GeV/c2 and 150 GeV/c2. We set 95% confidence level (C.L.) upper limits on the cross-section for ZH production as a function of the Higgs boson mass m_H; the limit is 8.2 times the SM prediction at m_H =115 GeV/c2.
| Titolo: | A Search for the Higgs Boson Produced in Association with Z --> ell+ ell- Using the Matrix Element Method at CDF II | |
| Autore/i: | CASTRO, ANDREA; DENINNO, MARIA MADDALENA; P. Mazzanti; MOGGI, NICCOLO'; RIMONDI, FRANCO; F. Semeria; ZUCCHELLI, STEFANO | |
| Autore/i Unibo: | ||
| Anno: | 2009 | |
| Rivista: | ||
| Digital Object Identifier (DOI): | http://dx.doi.org/10.1103/PhysRevD.80.071101 | |
| Abstract: | We present a search for associated production of the standard model (SM) Higgs boson and a Z boson where the Z boson decays to two leptons and the Higgs decays to a pair of b quarks in p anti-p collisions at the Fermilab Tevatron. We use event probabilities based on SM matrix elements to construct a likelihood function of the Higgs content of the data sample. In a CDF data sample corresponding to an integrated luminosity of 2.7 fb-1 we see no evidence of a Higgs boson with a mass between 100 GeV/c2 and 150 GeV/c2. We set 95% confidence level (C.L.) upper limits on the cross-section for ZH production as a function of the Higgs boson mass m_H; the limit is 8.2 times the SM prediction at m_H =115 GeV/c2. | |
| Data prodotto definitivo in UGOV: | 2010-02-18 12:37:14 | |
| Appare nelle tipologie: | 1.01 Articolo in rivista |
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http://hdl.handle.net/11585/84310
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