Can B -> J/ψ K(K*) decays be described by factorization?
Abstract
The new measurements of B -> J/ψ K(K*) decays by CDF and CLEO indicate that the production ratioR and the fraction of longitudinal polarization ΓL/Γ are smaller than the previous results. In conjunction with the new result of parity-odd transverse polarization in B -> J/ψK*, we found a minimal modification to the factorization hypothesis: While the data of B -> J/ψ K* can be accommodated in the factorization approach with nonfactorizable terms χA1 = χA2 = χv --- χ of ~ 15% to next-to-leading order, the result of R measurement requires that the nonfactorizable effect χF1 on B -> J/ψ K be slightly larger than χ. Therefore, the effective parameter aeff2 is not universal even for B ->J /ψ K(K*) decays. We have generalized the considerations to B -> ψ(2S)K(K*) and Bs ->J /ψ φ and found that the predictions are in agreement with currently available data.
- Publication:
-
Physics Letters B
- Pub Date:
- February 1997
- DOI:
- 10.1016/S0370-2693(97)00083-X
- arXiv:
- arXiv:hep-ph/9610283
- Bibcode:
- 1997PhLB..395..345C
- Keywords:
-
- High Energy Physics - Phenomenology;
- High Energy Physics - Experiment
- E-Print:
- 12 pages, typos in Eqs.(5) and (16) are corrected