Study of Charm Fragmentation into D^{*\pm} Mesons in Deep-Inelastic Scattering at HERA

Details Study of Charm Fragmentation into D^{*\pm} Mesons in Deep-Inelastic Scattering at HERA Study of Charm Fragmentation into D^{*\pm} Mesons in Deep-Inelastic Scattering at HERA

2008-08-07

arxiv.org/abs/0808.1003v2

Eur.Phys.J.C59:589-606,2009

Physics

High Energy Physics

High Energy Physics - Experiment

33 pages, submitted to EPJC

Scientific paper

10.1140/epjc/s10052-008-0792-2

The process of charm quark fragmentation is studied using $D^{*\pm}$ meson production in deep-inelastic scattering as measured by the H1 detector at HERA. Two different regions of phase space are investigated defined by the presence or absence of a jet containing the $D^{*\pm}$ meson in the event. The parameters of fragmentation functions are extracted for QCD models based on leading order matrix elements and DGLAP or CCFM evolution of partons together with string fragmentation and particle decays. Additionally, they are determined for a next-to-leading order QCD calculation in the fixed flavour number scheme using the independent fragmentation of charm quarks to $D^{*\pm}$ mesons.

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