Study of Two-Body Non-leptonic Charmless Bs→vv Decays within QCD Factorization
- Received Date: 2004-04-26
- Accepted Date: 1900-01-01
- Available Online: 2004-12-05
Abstract: using the method of QCD factorization, we analyse the two–body non–leptonic decays of Bs meson into two light vector mesons in the standard model. We find: (i) non–factorizable corrections to different helicity amplitudes are different, and effective parameters ah_i are helicity dependent. (ii) the branching ratios of some Bs→vv channels are very large, and even reach to the order of 10-5, which is quite possible to be measured in the future experiments of b physics. (iii) for most decay modes, the transverse decay rate to the total one,Γ_t/Γ, is very small, which implies that both final state light vector mesons in the Bs→vv decay tend to zero helicity.