PREDICTIONS FOR D-ASTERISK(+ -) PHOTOPRODUCTION AT DESY HERA WITH NEWFRAGMENTATION FUNCTIONS FROM CERN LEP-1 - ART. NO. 014014/

We present new sets of nonperturbative fragmentation functions for D( +/-) mesons, both at leading and next-to-leading order in the MS facto rization scheme with five massless quark flavors. They are determined by fitting the latest OPAL and ALEPH data on inclusive D(+/-) product ion in e(+)e(-) annihilation. We take the charm-quark fragmentation fu nction to be of the form proposed by Peterson et al. and thus obtain n ew values of the epsilon(c) parameter, which are specific for our choi ce of factorization scheme. With these fragmentation functions, recent data on inclusive D(+/-) photoproduction in ep collisions at DESY HE RA are reasonably well reproduced. [S0556-2821(98)04513-5].