Role of Deuteron NN^* -components in proceses pd - dp and pd- dN^*

Abstract

The contribution of nucleon isobar $N^{\ast }$ exchanges to backward elastic pd-scattering is calculated on the basis of deuteron 6q-model and found to be negligible in comparison with the neutron exchange. It is shown that the pole amplitude of neutron pickup from the deuteron $n{N}^{\ast }$-component is favoured in the reaction $pd\to d{N}^{\ast }$ for backward going $N^{\ast }(1440)$ and $N^{\ast }(1710)$ at kinetic energy of incident proton of 1.5--2 GeV whereas the triangular diagram with subprocess $pp\to d{\pi }^{+}$ related to the usual $pn-$component of deuteron is considerable suppressed.

Comments: 10 pages, 3 Postscript figures, expanded version is published in two papers in Yad. Fiz. 60 (1997) 1603; 1771