Degree Type

Dissertation

Date of Award

2006

Degree Name

Doctor of Philosophy

Department

Physics and Astronomy

First Advisor

John Hauptman

Abstract

We have performed a search for a fermiophobic Higgs boson in tri-photon events. The study has been performed on 0.83 fb-1 of data collected with the DZero detector at the Tevatron collider, the world's highest energy accelerator. The study was motivated by the recent phenomenological study that suggests that at presently attained energies and statistics new Higgs production mechanisms become experimentally accessible. All backgrounds were estimated from the data in a self consistent manner. We observed zero tri-photon events and expected 0.5 +/- 0.2 from the Standard Model processes. Therefore, we set 95% CL upper limit on the higgs production cross-section which is 25.3 fb-1. This is the most stringent limit on the considered class of models today.

DOI

https://doi.org/10.31274/rtd-180813-12104

Publisher

Digital Repository @ Iowa State University, http://lib.dr.iastate.edu

Copyright Owner

Oleksiy Vladimirovich Atramentov

Language

en

Proquest ID

AAI3229051

File Format

application/pdf

File Size

236 pages

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