Methods
- Acp is secondary result from BR measurement
- More details given in Jim Smithís talk...
- Broad event selection based on
- quality cuts for tracks, showers, p0, KsÖ
- Continuum rejection |cosqs|<0.8, 0.9
- Simple kinematic signal identification:
- B candidate mass and energy
- Maximum Likelihood fit based on
- mass
- energy
- particle ID (dE/dx)
- event shape characteristics (Fisher discriminant)
- resonance sub-mass (h/,w)
- helicity angle (w)
- Backgrounds are from e+e- -> qq (Acp=0)