A Study of K0(s) production in Z0 decays

The production of K 0 mesons in e + e − interactions at center of mass energies in the region of the Z 0 mass has been investigated with the OPAL detector at LEP. The rate is found to be 2.10±0.02±0.14 K 0 , Z 0 per hadronic event. The predictions from the JETSET and HERWIG generators agree very well with both the rate and the scale invariant cross section (1/σ had β) (dσ/d x E ) for K 0 production. Comparisons of the inclusive momentum spectrum with predictions of an analytical QCD formula and with data from lower center of mass energies are presented.

electron positron: colliding beams
colliding beams: electron positron
electron positron: annihilation
annihilation: electron positron
electron positron: inclusive reaction
Z0: decay modes
decay modes: Z0
K0(S): electroproduction
electroproduction: K0(S)
K0(S): nonleptonic decay

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