Transverse Momentum Distributions in B-Decays
Abstract
We consider transverse momentum distributions in B-decays. The O(alphaS) coefficients for soft and collinear logarithms are computed to next-to-leading accuracy. Resummation of large logarithmic contributions is performed in impact parameter space within the general formalism for transverese momentum distributions. It is shown that the shape-function approach as used for the threshold distribution case cannot be extended to the transverse momentum one.
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