New approach for calculating heavy-to-light form factors with QCD sum rules on the light-cone

Details New approach for calculating heavy-to-light form factors with QCD sum rules on the light-cone New approach for calculating heavy-to-light form factors with QCD sum rules on the light-cone

2000-07-27

arxiv.org/abs/hep-ph/0007317v1

JHEP 0101:005,2001

Physics

High Energy Physics

High Energy Physics - Phenomenology

13 pages, LaTeX

Scientific paper

10.1088/1126-6708/2001/01/005

We suggest a new approach for calculating heavy-to-light form factors. The
method is based on light cone sum rules (LCSR) and covers the whole kinematical
range of momentum transfer. The derivation of the new sum rule uses a suitable
combination of double and single dispersion integrals. As an example we give
numerical results for the form factor f^+ for the B -> pion transition.

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