Non-factorization and the Decays B into J/psi + K(*)

Details Non-factorization and the Decays B into J/psi + K(*) Non-factorization and the Decays B into J/psi + K(*)

1994-09-08

arxiv.org/abs/hep-ph/9409261v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

RevTeX, 8 pages (1 figure, available by fax or post), WM-94-110

Scientific paper

Many known models, which generally use a factorization hypothesis, give a poor account of the decays B into J/psi + K(*). Usually there is a free overall factor, which is fit to the data, so that tests of the models rely upon ratios. The models tend to give too much K* compared to K and too much transverse polarization compared to longitudinal. Our microscopic calculations, which use perturbative QCD, do well for both ratios. A microscopic calculation allows us to see how well factorization, heavy quark symmetry, and other features of various models are working. In the present case, agreement with the experimental ratios is dependent upon a breakdown of factorization for one of the amplitudes.

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