A Search for the Higgs Boson Produced in Association with $Z\to {\ell }^{+}{\ell }^{-}$ Using the Matrix Element Method at CDF II

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 $p\bar{p}$ 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$/c^2$ and 150 GeV$/c^2$. 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$/c^2$.

Submitted to Phys. Rev. D

References in corpus (1)

• Search for a Higgs boson produced in association with a Z boson in ppbar collisions

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