Calculation of the Branching Ratio of in PQCD
arXiv:hep-ph/0607009 · doi:10.1103/PhysRevD.74.114029
Abstract
The branching ratio of is re-evaluated in the PQCD approach. In this theoretical framework all the phenomenological parameters in the wavefunctions and Sudakov factor are priori fixed by fitting other experimental data, and in the whole numerical computations we do not introduce any new parameter. Our results are consistent with the upper bounds set by the Babar and Belle measurements.
12 pages, 1 figure, version to appear in Phys. Rev. D
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