Faithin Omaha eBook Collection

Download or read book Measurement of Charmless B to Vector-Vector Decays at BaBar written by and published by . This book was released on 2011 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors present results of B → vector-vector (VV) and B → vector-axial vector (VA) decays B° →?X(X =?,? or?°), B+ →?K{sup (*)+}, B° → K*K*, B° →?+b1− and B+ → K*°?1+. The largest dataset used for these results is based on 465 x 106?(4S) → B{bar B} decays, collected with the BABAR detector at the PEP-II B meson factory located at the Stanford Linear Accelerator Center (SLAC). Using larger datasets, the BABAR experiment has provided more precise B → VV measurements, further supporting the smaller than expected longitudinal polarization fraction of B →?K*. Additional B meson to vector-vector and vector-axial vector decays have also been studied with a view to shedding light on the polarization anomaly. Taking into account the available errors, we find no disagreement between theory and experiment for these additional decays.