QCD Calculation of the B → π,K Form Factors
Abstract
We calculate the form factors for the heavy-to-light transitions B→ π,K by means of QCD sum rules using π and K light-cone wave functions. Higher twist contributions as well as gluonic corrections are taken into account. The sensitivity to the shape of the leading-twist wave functions and effects of SU(3)-breaking are discussed. The results are compared with quark model predictions and with the results from QCD sum rules for three-point correlators.
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