| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 10725826 | Physics Letters B | 2009 | 5 Pages |
Abstract
We have calculated the next-to-leading order cross sections for the inclusive production of Dâ-mesons in ep collisions at HERA for finite, although very small Q2. In this Q2-range, the same approximations as for photoproduction can be used. Our calculation is performed in the general-mass variable-flavour-number scheme. In this approach, large logarithms of the charm transverse momentum are resummed and finite terms depending on m2/pT2 are kept in the hard scattering cross sections. The theoretical results are compared with recent data from the ZEUS Collaboration at HERA. On average, we find good agreement.
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Authors
G. Kramer, H. Spiesberger,