Search for the Higgs boson produced in association with W(+/-) boson, in WH to tau-nu-bottom quark-antibottom quark final state, in proton anti-proton collisions at 1.96 TeV center of mass energy.

Format:

Book

Thesis/Dissertation

Author/Creator:

Pianori, Elisabetta.

Contributor:

University of Pennsylvania.

Language:

English

Subjects (All):

Particles (Nuclear physics).

0798.

Local Subjects:

0798.

Physical Description:

117 pages

Contained In:

Dissertation Abstracts International 73-06B.

System Details:

Mode of access: World Wide Web.

text file

Summary:

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 pp¯ collisions at s = 1.96 TeV at the Tevatron. W H → τνbb¯ 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.

Notes:

Source: Dissertation Abstracts International, Volume: 73-06, Section: B, page: 3673.

Adviser: Nigel Lockyer.

Thesis (Ph.D.)--University of Pennsylvania, 2011.

Local Notes:

School code: 0175.

ISBN:

9781267200488

Access Restriction:

Restricted for use by site license.