On the extraction of non-perturbative effects in the fragmentation functions of heavy quarks in e+ e- annihilation
Carlo Oleari
Abstract
In this talk, we consider the computation of D and B fragmentation functions in e+e- annihilation. We present an improved differential cross section that merges together the O(alphas2) fixed-order calculation and the next-to-leading-logarithmic resummed one. We compare the results of fitting present data using the next-to-leading-log cross section, the O(alphas2) fixed-order and the improved one.
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