Eur. Phys. J. C 18, 547-553
Variable flavor number schemes versus fixed order perturbation theory for charm quark electroproductionA. Chuvakin1, J. Smith1 and B.W. Harris2
1 C.N. Yang Institute for Theoretical Physics, State University of New York at Stony Brook, Stony Brook, NY 11794-3840, USA
2 High Energy Physics Division, Argonne National Laboratory, Argonne, IL 60439, USA
(Received: 31 October 2000 / Revised version: 8 November 2000 / Published online: 21 December 2000 -© Springer-Verlag 2000)
Data for meson electroproduction in the range has recently been presented by the ZEUS collaboration at HERA. We use these results together with previously published data for to test whether one can distinguish between different theoretical schemes for charm quark electroproduction. We find that up to the largest Q2 measured, it is not possible to make such a differentiation. Then we point out the regions where differences between the various schemes arise.
© Società Italiana di Fisica, Springer-Verlag 2001