Measurement of the Decay Amplitudes and Branching Fractions of B → J/ψ K* and B → J/ψ K Decays

Authors

• C. P. Jessop, Stanford University
• Kenneth A. Bloom, University of Nebraska-LincolnFollow
• CLEO Collaboration

Document Type

Article

Date of this Version

12-8-1997

Comments

Published by American Physical Society. Phys. Rev. Lett. 79, 4533 (1997). Permission to use. http://prl.aps.org. Copyright © 1997 American Physical Society.

Abstract

Using data taken with the CLEO II detector at the Cornell Electron Storage Ring, we present the first full angular analysis in the color-suppressed modes B⁰ → J/Ψ K ^*0and B⁰ → J/Ψ K^*+. This leads to a complete determination of the decay amplitudes of these modes including the longitudinal polarization Γ_L/Γ= 0.52 ± 0.07 ± 0.04 and the P wave component │P│²= 0.16 ± 0.08 ± 0.04. In addition, we update the branching fractions for B → J/Ψ K and B → J/Ψ K*.