Speaker
Felix Hekhorn
(University of Jyväskylä)
Description
We discuss a new extraction of D-meson fragmentation functions using experimental data from LEP and LHC. We focus particularly on kinematical regimes where perturbative QCD should be safely applicable to avoid contamination from higher-twist effects which could lead to an apparent process dependence of fragmentation functions. We account for the initial-state radiation and, as a novel ingredient, consider the prompt and non-prompt contributions separately. The analysis is carried out at next-to-leading order accuracy for $D^0$, $D^\pm$, and $D^*$ mesons, including uncertainty estimation based on Monte-Carlo replica technique.
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Authors
Felix Hekhorn
(University of Jyväskylä)
Hannu Paukkunen
(University of Jyväskylä)
Ilkka Helenius
(University of Jyväskylä, Department of Physics)
Dr
Maria Zurita
(Complutense University of Madrid)