1. Topics in the Standard Model of Particle Physics Extension and Fourth-Order Gravity Open Access Author: Ochoa, Joseph R Title: Topics in the Standard Model of Particle Physics Extension and Fourth-Order Gravity Graduate Program: Physics Keywords: weyl tensorcosmic microwave backgroundcmbchern-simonscircular polarizationlorentzviolationcosmologystandard model extensionnoncommutative geometrygravitational wavesfourth-order gravity File: Download JosephOchoa-Dissertation.pdf Committee Members: Martin Bojowald, Dissertation Advisor/Co-AdvisorStephon Alexander, Committee Chair/Co-ChairMartin Bojowald, Committee Chair/Co-ChairRichard Wallace Robinett, Committee MemberVictor Nistor, Committee Member