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Type of Document Dissertation Author Xuan, Nguyen Phuoc Author's Email Address nxuan@nd.edu URN etd-04062005-220940 Title Search for Quark-Lepton Compositeness in the Dimuon Final State at D0 Degree Doctor of Philosophy Department Physics Advisory Committee
Advisor Name Title Anna Goussiou Committee Member Gordon Berry Committee Member Mitchell Wayne Committee Member Neal Cason Committee Member Keywords
- Beyond the Standard Model
Date of Defense 2005-03-29 Availability unrestricted Abstract We used the upgraded DO detector at the Tevatron at sqrt{s} = 1.96 TeV to collect data in a search for a compositeness signature of quarks and leptons. This analysis uses an integrated luminosity of 400 pb-1. The high-mass dimuon mass spectrum is compared with that predicted by Drell-Yan (DY) scattering, modified by a contact interaction. This interaction is parameterized by a compositeness energy scale factor Lambda. Preliminary limits on Lambda are set at the 95% confidence level for constructive and destructive interference between the DY amplitude and the contact interaction for various quark and lepton chiralities.Files
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