Speaker
Mr
Zaki Shalhout
(Wayne State University)
Description
We present a search for associated production of a standard model (SM) Higgs boson and a Z boson where the Z decays to two leptons and the Higgs decays into a pair of b quarks, p-pbar->ZH->llbb. We explore techniques not currently used in other Higgs searches at CDF. We utilize SM matrix elements to calculate event probabilities rather than utilizing them as a discriminant variable. Using these probabilities we construct a likelihood function of the Higgs content of the data sample, rather than the standard template approach, and then extract a limit from the sample using a technique that guarantees exact coverage. In 2.7 fb-1 of CDF data we see no evidence of the production of a Higgs boson with a mass between 100 GeV/c^2 and 150 GeV/c^2. We set 95% C.L. upper limits on the cross-section for ZH production as a function of the Higgs boson mass (m_H); the limit is 7.8 times the SM prediction at m_H = 115 GeV/c^2.
Authors
Aurelio Juste
(Fermilab)
Dr
Eric James
(Fermi National Accelerator Lab)
Horst Wahl
(Florida State University)
Stefan Soldner-Rembold
(University of Manchester)
TBA
