Neutral kaon production in ${\mathit{e}}^{+}$${\mathit{e}}^{\mathrm{-}}$, ep, and pp¯ collisions at next-to-leading order

We present new sets of fragmentation functions for neutral kaons, both at leading and next-to-leading order. They are fitted to data on inclusive ${\mathit{K}}^0$ production in ${\mathit{e}}^{+}$${\mathit{e}}^{\mathrm{-}}$ annihilation taken by Mark II at SLAC PEP (√s=29 GeV) and by ALEPH at CERN LEP. Our fragmentation functions lead to a good description of other ${\mathit{e}}^{+}$${\mathit{e}}^{\mathrm{-}}$ data on inclusive ${\mathit{K}}^0$ production at various energies. They also nicely agree with the ${\mathit{K}}_{\mathit{S}}^0$ transverse-momentum spectra measured by H1 at the DESY ep collider HERA, by UA5 at the CERN Spp¯S collider, and by CDF at the Fermilab Tevatron. © 1996 The American Physical Society.