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Phys. Rev. D 80, 071101(R) (2009) [8 pages]

Search for the Higgs boson produced in association with Z+- using the matrix element method at CDF II

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T. Aaltonen et al.
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Received 25 August 2009; published 12 October 2009

We present a search for associated production of the standard model 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 pp̅ collisions at the Fermilab Tevatron. We use event probabilities based on standard model 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 upper limits on the cross section for ZH production as a function of the Higgs boson mass mH; the limit is 8.2 times the standard model prediction at mH=115  GeV/c2.

© 2009 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevD.80.071101
DOI:
10.1103/PhysRevD.80.071101
PACS:
14.80.Bn, 13.38.Dg, 13.85.Qk, 14.70.Hp