Nonfactorization and final state interactions in $(B, B_s) \rightarrow \psi P$ and $\psi V$ decays

F.M. Al-Shamali; A.N. Kamal

doi:doi:10.1007/s100529800798

EPJ

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2023 Impact factor 4.2

Particles and Fields

Eur. Phys. J. C 4, 669-677
DOI 10.1007/s100529800798

Nonfactorization and final state interactions
in $(B, B_s) \rightarrow \psi P$ and $\psi V$ decays

F.M. Al-Shamali - A.N. Kamal

Theoretical Physics Institute and Department of Physics, University of Alberta, Edmonton, Alberta T6G 2J1, Canada

Received: 21 August 1997 / Published online: 26 February 1998

Abstract
Available experimental data on decay rates for $B \rightarrow \psi K$ , and decay rates and transversity amplitudes for $B \rightarrow \psi K^*$ are used to investigate nonfactorization contributions in these decays using five different theoretical models for the formfactors. Using the knowledge on nonfactorization so gained, we study the processes $B_s \rightarrow \psi (\eta, \eta')$ , $B_s \rightarrow \psi \phi$ and $B \rightarrow \psi(2S) K^*$ . We find that present experimental data for the last two processes are consistent with the predictions of most of the models considered.