Search for the Higgs boson produced in association with $$W^\pm$$ boson, in $$WH \to \tau \nu b\bar{b}$$ final state, in $$p\bar{p}$$ collisions at 1.96 TeV center of mass energy
- Univ. of Pennsylvania, Philadelphia, PA (United States)
The search for the associated production of the Standard Model Higgs boson and a W boson is motivated and discussed here. It is performed using data corresponding to an integrated luminosity of 5.7 fb –1, collected by the CDF detector during p$$\bar{b}$$ collisions at [special characters omitted] = 1.96 TeV at the Tevatron. W H → τνb$$\bar{b}$$ candidate events are selected requiring two jets, a hadronically decaying τ lepton and large missing transverse energy. To increase the signal-to-background ratio, at least one of the jets must be consistent with originating from a bottom quark. A binned likelihood fit of the dijet invariant mass distribution is performed to test for a potential Higgs boson signal. In the absence of an observed excess, we set a 95% Confidence Level (C.L.) upper limit on the production rate times branching ratio for a potential Higgs boson as a function of its mass. For a test mass of 115 GeV/c², the observed (expected) 95% C.L. upper limit is 28.7 (46.6) times the Standard Model expectation.
- Research Organization:
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- DOE Contract Number:
- AC02-07CH11359
- OSTI ID:
- 1402432
- Report Number(s):
- FERMILAB-THESIS-2011-67; 1502030
- Country of Publication:
- United States
- Language:
- English
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