Search for an invisibly decaying Higgs boson produced via vector boson fusion / Vanguri, Rami Sesha.

Vanguri, Rami Sesha, author.
Ann Arbor : ProQuest Dissertations & Theses, 2015
1 electronic resource (189 pages)
Local subjects:
High energy physics. (search)
This thesis presents the first search of an invisibly decaying Higgs boson produced via Vector Boson Fusion on ATLAS. The dataset used for the analysis corresponds to 20.3fb-1 of proton-proton collisions at √s = 8 TeV recorded at the Large Hadron Collider in 2011 and 2012. An upper bound limit is set at 95% confidence level on the invisible branching fraction of the Higgs Boson. A limit of 28% is observed (34% expected) and interpreted using the Higgs portal model to set a limit on the dark matter-nucleon cross section. The unique jet final state created by Vector Boson Fusion provides a stronger signal to background ratio than other invisibly decaying Higgs channels. The Vector Boson Fusion analysis presented resulted in the strongest constraint on dark matter production set by a hadron collider.
Source: Dissertation Abstracts International, Volume: 77-01(E), Section: B.
Advisors: Elliot D. Lipeles Committee members: Ira J. Kroll; Adam Lidz; Burt A. Ovrut; Hugh H. Williams.
Ph.D. University of Pennsylvania 2015.
Local notes:
School code: 0175
Lipeles, Elliot D., degree supervisor.
Williams, Hugh H., degree committee member.
Ovrut, Burt A., degree committee member.
Lidz, Adam, degree committee member.
Kroll, Ira J., degree committee member.
University of Pennsylvania. Physics and Astronomy. degree granting institution.
Contained In:
Dissertation Abstracts International 77-01B(E).
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