NEUTRAL KAON PRODUCTION IN E(-), EP, AND P(P)OVER-BAR COLLISIONS AT NEXT-TO-LEADING ORDER()E()

We present new sets of fragmentation functions for neutral kaons, both at leading and next-to-leading order. They are fitted to data on incl usive K-0 production in e(+)e(-) annihilation taken by Mark II at SLAG PEP (root s=29 GeV) and by ALEPH at CERN LEP. Our fragmentation funct ions lead to a good description of other e(+)e(-) data on inclusive K- 0 production at various energies. They also nicely agree with the K-S( 0), transverse-momentum spectra measured by H1 at the DESY ep collider HERA, by UA5 at the CERN <Sp(p)over bar S> collider, and by CDF at th e Fermilab Tevatron.