Date Awarded
2005
Document Type
Dissertation
Degree Name
Doctor of Philosophy (Ph.D.)
Department
Physics
Advisor
Christopher D Carone
Abstract
In this dissertation we consider spacetime modifications that result in new physics beyond the standard model. We investigate various collider implications of a particular Lorentz-conserving formulation of QED in which spacetime coordinates are noncommuting. We also consider collider implications of Universal Extra Dimensions. Specifically, we address the possible formation of bound states involving the first quark KK-modes, i.e. KK-quarkonium. In addition, we consider the use of boundary conditions in extra dimensions to break gauge symmetries in unified theories. These boundary conditions can be related to a boundary Higgs sector that decouples from the theory. This technique of "Higgsless" symmetry breaking is applied to several models based on the trinified gauge group GT = SU(3)C x SU(3) L x SU(3)R. In addition, we analyze various phenomenological issues such as coupling unification and proton decay.
DOI
https://dx.doi.org/doi:10.21220/s2-314k-w853
Rights
© The Author
Recommended Citation
Conroy, Justin M., "Modifications of spacetime and particle physics beyond the standard model" (2005). Dissertations, Theses, and Masters Projects. William & Mary. Paper 1539623481.
https://dx.doi.org/doi:10.21220/s2-314k-w853
