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Advances in High Energy Physics
Volume 2013 (2013), Article ID 175287, 12 pages
Research Article

Branching Fractions and Asymmetries of and Decays in the Family Nonuniversal Model

Department of Physics, Yantai University, Yantai 264-005, China

Received 18 May 2013; Accepted 17 July 2013

Academic Editor: Seog Oh

Copyright © 2013 Ying Li et al. 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.


Within the QCD factorization framework, we investigate the branching fractions and the direct asymmetries of decays and under two different scenarios in the standard model and the family nonuniversal model. We find that the annihilation terms play crucial roles in these decays and lead to the major uncertainties. For decays , the new boson could change the branching fractions remarkably. However, for other decays, its contribution might be clouded by large uncertainties from annihilations. Unfortunately, neither the standard model nor the model can reproduce all experimental data simultaneously under one certain scenario. We also noted that the direct asymmetries of could be used to identify the meson and search for the contribution of new boson.