search for the decay with the babar detector at slac hella snoek nikhef monday dec 20 2004 part i...
DESCRIPTION
Hella SnoekNIKHEF3 Statistics versus sensibility The sensitivity to the CP asymmetry scales with Coupling to W 200 MeV ~1.1 For we are more sensitive to the CP asymmetry however we also have less events! So how does a low Branching Fraction affect the error on the CP asymmetry A? error on measurement of A: A - CP asymmetry N – number events for : A ~ N = for : A ~ 1 N =