Next-to-Leading order QCD corrections to charged current charm production and the unpolarized and polarized strange sea at HERA
S. Kretzer1 - M. Stratmann2
1 Institut für Physik, Universität Dortmund,
D-44221 Dortmund, Germany
2 Department of Physics, University of Durham, Durham DH1 3LE, UK
Received: 9 March 1999 / Published online: 15 July 1999
Charged current charm and D meson production is studied in detail as a means of determining the unpolarized and polarized strange sea densities at HERA. All analyses are performed in next-to-leading order QCD, including a calculation of the so far unknown spin-dependent coefficient functions up to .It is shown that a decent measurement is possible in the unpolarized case, provided a sufficient luminosity can be reached in the future, while for longitudinally polarized beams it appears to be extremely challenging due to limitations imposed on the expected statistical accuracy by the charm detection efficiency.