d\pi\pi decay of the d* dibaryon

Abstract

The $d^{\ast }\to d\pi \pi$ partial decay width has been calculated in a wave-function model for $d^{\ast }$ and $d$. It is found to be smaller than a previous estimate by a factor of 7. A previously proposed dependence on dibaryon sizes is confirmed. Additional dependence on the high-momentum components of dibaryon wave functions is found.

Comments: 3 journal-style pages, 2 postscript figures, revised 4/1/99; submitted to Physical Review C