How To Kill a Penguin

Details How To Kill a Penguin How To Kill a Penguin

2007-06-23

arxiv.org/abs/0706.3444v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages, 4 figures, 1 table, uses pdflatex, talk given at DIS 2007, Muenchen, Germany, April 15--20, 2007

Scientific paper

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.

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