How To Kill a Penguin
High Energy Physics - Phenomenology
2007-06-26 v1
Abstract
Within constrained minimal-flavor-violation the large destructive flavor-changing Z-penguin managed to survive eradication so far. We give a incisive description of how to kill it using the precision measurements of the Z -> b anti-b pseudo observables. The derived stringent range for the non-standard contribution to the universal Inami-Lim function C leads to tight two-sided limits for the branching ratios of all Z-penguin dominated flavor-changing K- and B-decays.
Cite
@article{arxiv.0706.3444,
title = {How To Kill a Penguin},
author = {Ulrich Haisch},
journal= {arXiv preprint arXiv:0706.3444},
year = {2007}
}