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Advances in High Energy Physics
Volume 2012 (2012), Article ID 494031, 18 pages
doi:10.1155/2012/494031
and Decays in QCD Factorization Approach
Physics Department, Semnan University, P.O. Box 35195-363, Semnan 35351, Iran
Received 10 October 2011; Revised 4 December 2011; Accepted 29 December 2011
Academic Editor: Ira Rothstein
Copyright © 2012 Mahboobeh Sayahi and Hossein Mehraban. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
The hadronic and has been analyzed in “QCD factorization” approach and generalized factorization. The effective coefficients have been calculated for three helicity states which give three different contribution of amplitudes. We consider that J/ψ behaves as a light meson in compared to meson. For and , experimental data of branching ratios are (1.8 ± 0.5) × 10−3 and <5 × 10−4, respectively. Our best obtained results are (1.79 ± 0.01) × 10−3 at θ = 58° and (1.42 ± 0.01) × 10−3 at θ = 32° for decay. And we have 4.27 × 10−4 at θ = 58° and 3.45 × 10−4 at θ = 32° for , which are in agreement with experiment.