$\Delta F = 2$ Effective Lagrangian in theories with vector like fermions
High Energy Physics - Phenomenology
2009-10-30 v2
Abstract
In this work we analyze a new piece present in the effective Lagrangian in models with extra vector-like quarks. This piece, which was not taken into account previously, is required in order to preserve gauge invariance once the unitarity of the CKM matrix is lost. We illustrate the effects of this new piece in both, CP conserving and CP violating processes.
Cite
@article{arxiv.hep-ph/9708209,
title = {$\Delta F = 2$ Effective Lagrangian in theories with vector like fermions},
author = {G. Barenboim and F. J. Botella},
journal= {arXiv preprint arXiv:hep-ph/9708209},
year = {2009}
}
Comments
18 pages, Latex, 9 figures. Typos and misprints were corrected and some references added. To appear in Phys. Lett. b