A study of $\Sigma^{\pm}$, $\Sigma^{*\pm}$ and $\overline{\Sigma}^-_{1385}$ production in the hyperon beam experiment WA89 at CERN

Abstract.

We report on a measurement of the inclusive production cross sections for $\Sigma^{\pm}$, $\Sigma^{\pm}_{1385}$, $\Sigma^{\pm}_{1660}$ and $\overline{\Sigma}^-_{1385}$ in the CERN hyperon beam experiment WA89, using a $\Sigma^- / \pi^-$ beam of 345 GeV/c momentum and neutrons of 260 GeV/c mean momentum. A strong leading particle effect was observed for all negative $\Sigma$ and $\Sigma^*$. The results are compared with predictions from phenomenological models.