A Phenomenological Study of Heavy-Quark Fragmentation Functions in e+e- Annihilation

Abstract

We consider the computation of D and B fragmentation functions in e+e- annihilation. We compare the results of fitting present data using the next-to-leading-logarithmic resummed approach, versus the O(alpha_s^2) fixed-order calculation, including also mass-suppressed effects. We also propose a method for merging the fixed-order calculation with the resummed approach.

Comments: 27 pages, 11 figures