Interference Correlations of Hyperons in Neutron-Carbon Interactions

The interference correlations of \Lambda-hyperon pairs produced on the carbon target by 20-70 GeV neutrons have been investigated with the EXCHARM spectrometer. Destructive correlations at low relative 4-momenta are observed for \Lambda\Lambda-pairs. No correlations of this type are observed for \Lambda\bar{\Lambda}. Comparison with the corresponding data on meson correlations shows a decrease of production area sizes with an increase of particle masses

Interference Correlations of Hyperons in Neutron-Carbon Interactions

The interference correlations of \Lambda-hyperon pairs produced on the carbon target by 20-70 GeV neutrons have been investigated with the EXCHARM spectrometer. Destructive correlations at low relative 4-momenta are observed for \Lambda\Lambda-pairs. No correlations of this type are observed for \Lambda\bar{\Lambda}. Comparison with the corresponding data on meson correlations shows a decrease of production area sizes with an increase of particle masses

Spin alignment of K∗(892)±K^{*}(892)^{\pm} mesons produced in neutron-carbon interactions

A new precise measurements of spin density matrix element $\rho_{00}$ of$K^*(892)^{\pm}$ mesons produced inclusively in neutron-carbon interactions at\~60 GeV have been carried out in the EXCHARM experiment at the Serpukhovaccelerator. The values of $\rho_{00}$ obtained in the transversity frame are$0.424\pm0.011(stat)\pm0.018(sys)$ for $K^*(892)^+$ and$0.393\pm0.025(stat)\pm0.018(sys)$ for $K^*(892)^-$. Significant $P_T$dependence of $\rho_{00}$ has been observed in $K^*(892)^+$ production