Search for ttH production using the Matrix Element Method
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Abstract:
A search for Standard Model production in the final state is presented.
The measurement of the process plays an important role in Higgs
characterization studies since it provides a direct probe of the Higgs Yukawa coupling to fermions, particularly to the top quark. Events with one lepton and at least 5 jets or two leptons and at least 4 jets are selected from fb of collision data collected by CMS at TeV. In order to separate the signal from the larger production of , this analysis uses a Matrix Element Method that assigns a signal and background probability density
to each event in terms of a particular Born-level amplitude. A likelihood ratio of these probability densities is used to extract the signal. The statistical interpretation is presented in the form of
95\% CL exclusion limits on the signal strength modifier and provides an expected
(observed) exclusion limit of (), corresponding to a best-fit value .Note:
- Preliminary results
- Data
- top: pair production
- coupling: Yukawa
- background
- CMS
- p p: scattering
- Higgs particle: associated production
- Higgs particle: hadronic decay
- bottom: pair production
- statistical analysis
References(57)
Figures(22)
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