Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1852115 | Physics Letters B | 2008 | 6 Pages |
Abstract
In this article, we calculate the Bâa1(1260) form-factors V1(q2), V2(q2), V3(q2) and A(q2) with the B-meson light-cone QCD sum rules. Those form-factors are basic parameters in studying the exclusive non-leptonic two-body decays BâAP and semi-leptonic decays BâAlνl, BâAl¯l. Our numerical results are consistent with the values from the (light-cone) QCD sum rules. The main uncertainty comes from the parameter Ï0 (or λB), which determines the shapes of the two-particle and three-particle light-cone distribution amplitudes of the B-meson, it is of great importance to refine this parameter.
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Authors
Zhi-Gang Wang,