Indirect CPViolation in the Neutral Kaon System Beyond Leading Logarithms and Related Topics
Abstract
I describe in detail the calculation of the coefficients eta_3 and eta_1 of the lowenergy Delta S=2 hamiltonian describing K^0K^0barmixing in the nexttoleading order of renormalization group improved (RG) perturbation theory. First a general introduction into the application of the operator expansion and of RG methods to weak processes is presented. This includes the RG formalism for Green's functions with two operator insertions. Second I discuss the elimination of unphysical operators with emphasis on evanescent operators. Then the twoloop calculations needed for eta_3 and eta_1 are shown and finally the implications on the phenomenology of epsilon_K and the K_LK_S mass difference are discussed. The results of this thesis have been published separately, but they are explained in more detail here.
 Publication:

arXiv eprints
 Pub Date:
 October 1995
 arXiv:
 arXiv:hepph/9510323
 Bibcode:
 1995hep.ph...10323N
 Keywords:

 High Energy Physics  Phenomenology
 EPrint:
 thesis, 127 pages, uses LaTeX 2e, some nonstandard style files included, figures not included, a complete PostScript version available from ftp://feynman.t30.physik.tumuenchen.de/pub/thesis/phdnierste.ps.gz