2 papers
hep-ph2008
Something about Z-penguins I want to tell
Ulrich Haisch
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…
hep-ph2007
Rare K- (vs.) B-decays
Ulrich Haisch
We present a concise review of the recent theoretical progress concerning the standard model calculations of the rare K_L -> pi^0 nu anti-nu, K^+ -> pi^+ nu anti-nu (gamma), anti-B…