Comments on unhappiness factors in simultaneous transfer DWBA description of (t,p) and (p,t) reactions

Finite-range one-step (simultaneous) transfer DWBA calculations have been carried out for (t, p) and (p, t) reactions involving some light-and medium-heavy nuclei with closed shells + 2 valence neutrons. A Tang-Herndon triton was used as well as realistic nuclear overlap functions generated by a sturmian procedure from a Schrödinger equation for two interacting particles in an external potential. The effect of the latter is to enhance cross section magnitudes by factors of 2–3, some of this enhancement being due to use of a density-dependent effective two-body interaction. Compared with data considerable unhappiness (underprediction) factors, however, remain. This finding is at variance with results reported recently by other authors.