Two-nucleon stripping reactions with tabakin potential

Abstract

The theory of two-nucleon stripping reactions has been considered. Due to the short-range correlations in nuclei and to the strong repulsive nature of nuclear forces at very short distances, the short-range correlations in nuclei are investigated. To take into account the short-range correlations, the nucleon-nucleon interaction is taken as a short-range repulsive core surrounded by a long-range attractive potential. A more realistic potential is suggested by Tabakin as a separable but nonlocal interaction. The differential cross-sections for the two-nucleon stripping reaction (t, p) have been calculated in two different cases by taking Yamaguchi or Breitet al. type parameters for the Tabakin potential used. DWBA calculations have been used to calculate the angular distributions for different (t, p) stripping reactions on the different target nuclei31P,96Zr,116Sn,118Sn and206Pb. Good agreement is obtained between the present theoretical calculations and the experimental data. By fitting the calculated angular distributions to the experimental data, more reliable spectroscopic factors are extracted.