Using the color evaporation model (CEM), we consider the decay rate of B → J/ψ + X and the polarization of J/ψ therein, and we compare the results with the data and with the predictions by the nonrelativistic quantum chromodynamics (NRQCD) approach. In the GEM, we use the input parameter determined from photo/hadro productions of J/ψ, and we find that it is difficult to make the CEM predictions confront with the CLEO data on these observables.
|Number of pages||5|
|Journal||Journal of the Korean Physical Society|
|Publication status||Published - 1999|
ASJC Scopus subject areas
- Physics and Astronomy(all)