Generator-Coordinate Calculation of the Potential Overlap for the DWBA Description of Cluster Transfer Reactions

摘要

The transition probability for the A(a,b)B (with a=b+x) reaction is investigated theoretically as a function of internal wave functions and of the sum of internucleon forces between b and x. For a system a=b+x described by the two-cluster generator-coordinate model, two exact and two much simpler approximate procedures to evaluate the transition probability as a function of internuclear distance are given. To test the feasibility of the exact procedures and the accuracy of the approximate ones, all have been carried through for the exp 7 Li= alpha +t system. The test shows that the exact techniques are likely to be feasible even for more complicated systems at least if symbolic computation is used, but, being very accurate, one of the simple methods is also recommendable. (Atomindex citation 14:782120)