Predictions for D*+- - photoproduction at HERA with new fragmentation functions from LEP-1

Dec, 1997
22 pages
Published in:
  • Phys.Rev.D 58 (1998) 014014
e-Print:
Report number:
  • DESY-97-241,
  • MPI-PHT-97-88

Citations per year

19982005201220192024051015
Abstract:
We present new sets of nonperturbative fragmentation functions for D^*+- mesons, both at leading and next-to-leading order in the MS-bar factorization scheme with five massless quark flavors. They are determined by fitting the latest OPAL and ALEPH data on inclusive D^*+- production in e^+e^- annihilation. We take the charm-quark fragmentation function to be of the form proposed by Peterson et al. and thus obtain new values of the epsilon_c parameter, which are specific for our choice of factorization scheme. With these fragmentation functions, recent data on inclusive D^*+- photoproduction in ep collisions at HERA are reasonably well reproduced.
  • electron p: deep inelastic scattering
  • electron p: inclusive reaction
  • exchange: one-photon
  • photon p: inclusive reaction
  • D*(2010): electroproduction
  • D*(2010): photoproduction
  • electron positron: annihilation
  • D*(2010): fragmentation function
  • quark: fragmentation function
  • charm