Production and decay of the d * dibaryon

The production of the isoscalar ${J}^{\ensuremath{\pi}}{=3}^{+}$ didelta dibaryon ${d}^{*}$ by proton inelastic scattering from deuteron targets is described in a double-scattering Glauber approximation. Each scattering changes a target nucleon into a \ensuremath{\Delta} with the help of the isovector tensor force transmitted by \ensuremath{\pi} and \ensuremath{\rho} mesons. The differential cross section constructed from empirical Love-Franey nucleon-nucleon $t$ matrices and a simple model of ${d}^{*}$ shows a maximum of some 10 \ensuremath{\mu}b/sr at 70\ifmmode^\circ\else\textdegree\fi{} (c.m.) for 500 MeV protons. The partial width of the decay ${d}^{*}\ensuremath{\rightarrow}\mathrm{NN}$ caused by the exchanges of the same mesons is found for this simple model of ${d}^{*}$ to be about 9 MeV if the ${d}^{*}$ mass is 2100 MeV. The implications of these results are discussed.