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
Copyright Date
2006
Language
en
Proquest ID
AAI3229051
File Format
application/pdf
File Size
236 pages
Recommended Citation
Atramentov, Oleksiy Vladimirovich, "Search for multi-photon signatures of a Higgs boson in ppbar collisions at sqrt(s) = 1.96 TeV " (2006). Retrospective Theses and Dissertations. 1490.
https://lib.dr.iastate.edu/rtd/1490
