V, $\overline{\Xi}^{+}$ and $\Omega^{-}$ inclusive production cross sections measured in hyperon experiment WA89 at CERN

Abstract.

We report on a measurement of the inclusive cross sections of $\Lambda$, $\overline\Lambda$, K ⁰ _S , $\overline{\Xi}^{+}$ $\Omega^{-}$ production by $\Sigma^-$ and $\pi^-$ of 345 GeV/c momentum and by neutrons of 260 GeV/c mean momentum in copper and carbon. The differential cross sections as function of p ² _t show a distinct non-gaussian behavior above 1.2 (GeV/c)². A comparison of the x_F-dependence of $\Lambda$, $\overline\Lambda$ and K⁰ production with calculations using PYTHIA and the QGSM model is discussed.