W-boson unitarity effects and oscillations in the neutral Kaon system
High Energy Physics - Phenomenology
2007-05-23 v3
Abstract
We study the effects on oscillations in the neutral-Kaon system from lepton and hadron self-energy loops in the W-boson propagators. The corresponding W box diagrams are evaluated by attaching the external quark lines to covariant vertex functions for the composite Kaons, integrating over all off-shell momenta. We find that the ratio of the imaginary and real parts of the amplitude is of the same size as with the experimental value of the modulus of the CP-violating parameter epsilon.
Cite
@article{arxiv.hep-ph/0308030,
title = {W-boson unitarity effects and oscillations in the neutral Kaon system},
author = {Eef van Beveren and George Rupp},
journal= {arXiv preprint arXiv:hep-ph/0308030},
year = {2007}
}
Comments
10 pages plain LaTeX; table in v1 contains two errors; corrected in v2 v3 conclusions rephrased