Search for new physics in the B→K(*)l+l- decays at BABAR
- Received Date: 2010-02-04
- Accepted Date: 1900-01-01
- Available Online: 2010-09-05
Abstract:
Based on a data sample of 384 million BB pairs collected with the BABAR detector at the PEP-Ⅱ asymmetric e+e- storage ring, we measure branching fractions, direct CP, isospin and lepton-flavor asymmetries for the rare decays B→K(*)l+l- in two di-lepton mass bins above and below the J/ψ resonance. For the B→K*l+l- decay, we also measure the K* longitudinal polarization fraction and the di-lepton forward-backward asymmetry.