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.

A. Castro, M. Deninno, P. Mazzanti, N. Moggi, F. Rimondi, F. Semeria, et al. (2009). A Search for the Higgs Boson Produced in Association with Z --> ell+ ell- Using the Matrix Element Method at CDF II. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 80, 071101-1-071101-8 [10.1103/PhysRevD.80.071101].

A Search for the Higgs Boson Produced in Association with Z --> ell+ ell- Using the Matrix Element Method at CDF II

CASTRO, ANDREA;DENINNO, MARIA MADDALENA;MOGGI, NICCOLO';RIMONDI, FRANCO;ZUCCHELLI, STEFANO
2009

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.
2009
A. Castro, M. Deninno, P. Mazzanti, N. Moggi, F. Rimondi, F. Semeria, et al. (2009). A Search for the Higgs Boson Produced in Association with Z --> ell+ ell- Using the Matrix Element Method at CDF II. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 80, 071101-1-071101-8 [10.1103/PhysRevD.80.071101].
A. Castro; M. Deninno; P. Mazzanti; N. Moggi; F. Rimondi; F. Semeria; S. Zucchelli
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/84310
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