We consider transverse momentum distributions in B-decays. The O(alpha (S))
coefficients for soft and collinear logarithms are computed to next-to-lea
ding accuracy. Resummation. of large logarithmic contributions is performed
in impact parameter space within the general formalism for transverse mome
ntum distributions. It is shown that the shape-function approach as used fo
r the threshold distribution case cannot be extended to the transverse mome
ntum one. (C) 2001 Published by Elsevier Science B.V.