2008/08/18 by Ulrich Haisch, Haisch, Ulrich
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #hep-ph
paper · pdf · doi:10.48550/arxiv.0808.2362
Parallel talk at ICHEP08, Philadelphia, USA, July 2008. 5 pages, PDFLaTeX, 2 pdf figures and 1 table; v2: LaTeX template and references updated
arxiv created 2008/10/19 · arxiv updated 2009/12/01
We stress that in models with constrained minimal flavor violation large negative corrections to the flavor-changing Z-penguin amplitudes are excluded by the precision measurements of the Z -> b anti-b pseudo observables performed at LEP and SLC. 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.