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Sullivan, J.D. Denham, Samuel Alexander 2011-06-03T14:21:47Z 2011-06-03T14:21:47Z 10000-01-01 1986 The first part of this thesis is devoted to analysis of the jet structure in the final state of the supersymmetric process [equation]. For scalar quark production, as for supersymmetric events in general, the signature which will enable supersymmetry to be discovered in future colliders is missing energy /momentum combined with certain characteristic jet angular and energy distributions. We study the squark production and decay process at the parton level and carry out a Monte Carlo simulation of the fragmentation of the quarks into jets of hadrons. We also discuss methods which an experimentalist could use to determine the squark and photino masses if confronted with a data sample with characteristics matching the supersymmetric events which we generate. In the second part of the thesis, we examine two-body radiative decays of quarkonium states [equation] in order to study the effects of the spin of the ~ on decay widths; stands for any elementary particle or resonance. Using effective couplings in a calculation which goes beyond the Wilczek aproximation, we find that in all cases examined, Jr = o±, 1 +, 2±, spin has little effect on the ratio [equation] except for masses close to the phase space limit. Submitted by Carolyn Mead (cmead2@illinois.edu) on 2011-06-03T14:21:47Z No. of bitstreams: 1 1986_denham.pdf: 4902721 bytes, checksum: 9baccbbb6fe4e7fc940958524c80a09f (MD5) Made available in DSpace on 2011-06-03T14:21:47Z (GMT). No. of bitstreams: 1 1986_denham.pdf: 4902721 bytes, checksum: 9baccbbb6fe4e7fc940958524c80a09f (MD5) Previous issue date: 1986 Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by Carolyn Mead (cmead2@illinois.edu) on 2011-06-03T14:21:47Z Item is restricted indefinitely. Restriction data tranferred 2014-07-01T11:11:26-05:00 Original Data Group with Access UIUC Users [automated] Release Date: none Reason: Thesis Thesis U of I Only 976580 http://hdl.handle.net/2142/25245 en 1986 Samuel Alexander Denham supersymmetric jets Z boson dcay radiative decay heavy quarkonium scalar quark production Supersymmetric jets from Z boson decay and radiative decays of heavy quarkonium Dissertation / Thesis text Physics Physics University of Illinois at Urbana-Champaign Dissertation Ph.D.