The total yields of K^+(892), Sigma^+(1385) and Sigma^0 in neutrino-induced reactions at <E_nu> = 10 GeV

Abstract

Using the data obtained with SKAT bubble chamber, the total yields of $K^{+}(892)$, ${\Sigma }^{+}(1385)$ and ${\Sigma }^0$ are estimated for the first time in neutrino-induced reactions at moderate energies ($<E_{\nu }>$ = 10.4 GeV). It is shown, that the recently observed \cite{ref1,ref2} enhancement of the $K^0$ and $\Lambda$ yields in $\nu A$ interactions (as compared to $\nu N$ interactions) is contributed only slightly by the $K^{+}(892)$ and ${\Sigma }^{+}(1385)$ production, respectively. The decay contribution to the $K^0$ and $\Lambda$ yields is found to be in qualitative agreement with higher energy ($<E_{\nu }>\ge$ 40 GeV) data. It is shown, that the energy dependence of the $K^{+}(892)$ mean multiplicity in $\nu N$ interactions is approximately linear in the range of $<E_{\nu }>\approx$ 10-60 GeV, while that for ${\Sigma }^0$ in $\nu A$ interactions (for $A$ = 20-21) is approximately logarithmic in the range of $<E_{\nu }>\approx$ 10-150 GeV.

6 pages, 3 figures