Variable flavor number schemes versus fixed order perturbation theory for charm quark electroproduction
نویسندگان
چکیده
Data for D * ± (2010) meson electroproduction in the range 10 < Q 2 < 1350 GeV 2 has recently been presented by the ZEUS collaboration at HERA. We use these results together with their previously published data for 1 < Q 2 < 600 GeV 2 to test whether one can distinguish between different theoretical schemes for charm quark electroproduction. We find that up to the largest Q 2 measured, it is not possible to make such a differentiation. Then we point out the regions where differences between the various schemes arise.
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