Abstract
In the earlier study (1987), it was pointed out that there are two equivalent formulations of the theory of the resonance cross section for forming a meso-molecule. When used for numerical evaluations they give different values, raising questions on the origin of the difference and the relative accuracy of the two forms. The present work analyses this and related issues, and gives values for cross sections and formation rates. In the (dt mu ) case, the author's estimates agree with the experimental values found in the Idaho-Los Alamos studies.