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 (20)

• A Unified Approach to the Classical Statistical Analysis of Small Signals
• High-Energy-Physics Event Generation with PYTHIA 6.1
• ALPGEN, a generator for hard multiparton processes in hadronic collisions
• Search for the Standard Model Higgs Boson at LEP
• HDECAY: a Program for Higgs Boson Decays in the Standard Model and its Supersymmetric Extension
• MadGraph/MadEvent v4: The New Web Generation
• An update on vector boson pair production at hadron colliders
• Measurement of the J/Psi Meson and b-Hadron Production Cross Sections in ppbar Collisions at sqrt s = 1960 GeV
• Soft-gluon resummation for Higgs boson production at hadron colliders
• Determination of the Jet Energy Scale at the Collider Detector at Fermilab
• A Precision Measurement of the Mass of the Top Quark
• Measurement of the ttbar Production Cross Section in ppbar Collisions at sqrt{s}=1.96 TeV using Lepton + Jets Events with Secondary Vertex b-tagging
• Maximizing Spin Correlations in Top Quark Pair Production at the Tevatron
• First Run II Measurement of the W Boson Mass
• Top Quark Mass Measurement from Dilepton Events at CDF II
• Top Quark Mass Measurement from Dilepton Events at CDF II with the Matrix-Element Method
• Search for a Higgs Boson Decaying to Two W Bosons at CDF
• Measurement of the $b$ Jet Cross Section in Events with a $Z$ Boson in $p\bar{p}$ Collisions at $\sqrt{s}$=1.96 TeV
• Search for a Higgs boson produced in association with a Z boson in ppbar collisions
• Search for the Higgs boson produced with $Z\to {\ell }^{+}{\ell }^{-}$ in $p\bar{p}$ collisions at $\sqrt{s}=$ 1.96 TeV

Cited by in corpus (8)

• HiggsBounds 2.0.0: Confronting Neutral and Charged Higgs Sector Predictions with Exclusion Bounds from LEP and the Tevatron
• A measurement of the ratio of inclusive cross sections $\sigma (p\bar{p}\to Z+b\mathrm{jet})/\sigma (p\bar{p}\to Z+\mathrm{jet})$ at $\sqrt{s}=1.96$ TeV
• Search for ZH to llbb production in 4.2 fb^-1 of ppbar collisions at sqrt(s) = 1.96 TeV
• Improved Search for a Higgs Boson Produced in Association with Z->l+l- in proton antiproton Collisions at sqrt(s) = 1.96 TeV
• High Energy WW Scattering at the LHC with the Matrix Element Method
• Searches for the Higgs boson decaying to W^{+} W^{-} -> l^{+}nu l^{-}nubar with the CDF II detector
• New HiggsBounds from LEP and the Tevatron
• Search for the Higgs boson in the all-hadronic final state using the CDF II detector