CPT symmetry tests with cold p¯ and antihydrogen

TitleCPT symmetry tests with cold p¯ and antihydrogen
Publication TypeJournal Article
Year of Publication2013
AuthorsYamazaki, Y, Ulmer, S
JournalAnnalen der Physik
Keywordsantimatter, CPT symmetry, Fundamental Interactions

Precision comparisons of the properties of particles and their corresponding antiparticles are highly relevant because the Standard Model of elementary particle physics, a local, Lorentz-invariant field theory, is necessarily symmetric with respect to the combined CPT operation. This symmetry defines exact equality between the fundamental properties of particles and their anti-images. Any measured and confirmed violation constitutes a significant challenge to the Standard Model. Recent results of different CPT-tests are summarized, with emphasis to the high-precision measurement of the magnetic moment of the proton and the antiproton, as well as the precision investigation of antihydrogen ground state hyperfine splitting.