Antimatter, the SME, and Gravity

Abstract

A general field-theoretic framework for the analysis of CPT and Lorentz violation is provided by the Standard-Model Extension (SME). This work discusses a number of SME-based proposals for tests of CPT and Lorentz symmetry, including antihydrogen spectroscopy and antimatter gravity tests.

Comments: 10 pages, presented at the 10th International Conference on Low Energy Antiproton Physics (LEAP 2011), Vancouver, Canada, April 2011