ISOSPIN INVARIANCE AND THE SPIN STRUCTURE OF THE AMPLITUDE FOR THE PROCESS H-3-3-]D(2)H+HE-4(HE)

We analyzed the general form of all polarization effects in the H-3 He-3 --> d(2)H + He-4 reaction. For this aim, we parametrized the spin structure of the full amplitude in terms of the transverse amplitudes which describe the different transitions between initial and final st ates, which in turn are differed by projections of nuclei spins along the normal to the reaction plane. The isospin invariance of the strong interaction generates definite symmetry properties of the transverse amplitudes relative to the change cos theta-->-cos theta, where theta is the deuteron production angle in the c.m.s. We found all symmetry r elations for the polarization observables in the H-3 + He-3 --> d(2)H + He-4 reaction, which are the generalized form of the well-known Bars hay-Temmer theorem. We consider the one-, two-, and triple-spin correl ations in H-3 +He-3 --> d(2)H + He-4. For analysis of the triple-spin correlations, we focus on the structure functions formalism and show t hat a set of 41 structure functions describes all such correlations. I sospin invariance simplifies the spin structure of the full amplitude at theta=90 degrees; therefore, we calculated all polarization observa bles for this special kinematics.