We present measurements of decay amplitudes and triple-product correlations in B→K* decays based on 253fb-1 of data recorded at the Υ(4S) resonance with the Belle detector at the KEKB e+e- storage ring. The decay amplitudes for the three different helicity states are determined from the angular distributions of final-state particles. The longitudinal polarization amplitudes are found to be 0.45±0.05±0.02 for B0→K*0 and 0.52±0.08±0.03 for B+→K*+ decays. CP- and T-odd CP-violating triple-product asymmetries are measured to be consistent with zero.
Bibliographical noteFunding Information:
The authors gratefully acknowledge the assistance of the animal care staff, in particular, Dr. D. Wolf, Dr. S. Matthews and P. Bush for monitoring the canines during the imaging and postoperative care. This study is partially supported by grants from NIH NS53407, NS45694, NS43338, and HD43120 to J. H. Zhang. Neuroimaging support was provided in part by a NASA Cooperative Agreement to LLU.
All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)