CONSERVATION OF CHANNEL SPIN IN TRANSFER-REACTIONS

The conservation of channel spin implying that the spin of the initial bound pair coupled to that of the initial free particle should result in the same channel spin as the spin of the final bound pair coupled to the spin of the final free particle, follows as a consequence of th ree-body theory of transfer reactions with the assumption of separabil ity of two-body t-matrix. To test the validity of this principle we lo ok at the experimental data on stripping reactions on even-even nuclei . We find that although reactions to channels not conforming to channe l spin conservation are not altogether ruled out, the cross-sections o f reactions violating channel spin conservation are much smaller than those conforming to channel spin conservation.