On the extraction of non-perturbative effects in the fragmentation functions of heavy quarks in e+ e- annihilation

Details On the extraction of non-perturbative effects in the fragmentation functions of heavy quarks in e+ e- annihilation On the extraction of non-perturbative effects in the fragmentation functions of heavy quarks in e+ e- annihilation

1999-05-14

arxiv.org/abs/hep-ph/9905344v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

Talk given at XXXIV Rencontres De Moriond: QCD and High Energy Hadronic Interactions, Les Arc 1800, France, 20-27 March 1999

Scientific paper

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(alpha_s^2) 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(alpha_s^2) fixed-order and the improved one.

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