Journal
PHYSICS LETTERS B
Volume 666, Issue 5, Pages 477-482Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physletb.2008.08.014
Keywords
B meson; light-cone QCD sum rules
Funding
- National Natural Science Foundation [10775051]
- New Century Excellent Talents in University [NCET-07-0282]
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in this article, we calculate the B -> a(1) (1260) form-factors V(1)(q(2)), V(2)(q(2)), V(3)(q(2)) and A(q(2)) with the B-meson light-cone QCD sum rules. Those form-factors are basic parameters in studying the exclusive non-leptonic two-body decays B -> AP and semi-leptonic decays B -> Alv(1), B -> A (l) over barl. Our numerical results are consistent with the values from the (light-cone) QCD sum rules. The main uncertainty comes from the parameter omega(0) (or lambda(B)), 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. (C) 2008 Elsevier B.V. All rights reserved.
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