Sword, Daniel Gregory2011-03-292011-03-292011-01https://hdl.handle.net/11299/101961University of Minnesota Ph.D. dissertation. January 2011. Major: Physics. Advisor: Tony Gherghetta. 1 computer file (PDF)viii, 117 pages.Extensions of the warped extra dimension framework originally proposed by Randall and Sundrum are discussed, including soft-wall models and aspects of supersymmetry breaking. In particular, the standard model in a soft-wall background is covered in detail, including electroweak physics and an extensive treatment of fermions in arbitrary warped backgrounds. Additionally, aspects of lepton flavor violation in models of supersymmetry breaking with hierarchical soft-terms and Dirac gauginos are discussed, as these can occur naturally when supersymmetry is broken near the infrared boundary.en-USExtra dimensionsFermionFlavor violationRandall sundrumSupersymmetry breakingPhysicsThesis or Dissertation