arXiv:nucl-th/0206072·v3·Nuclear Theory
Direct neutron capture cross sections of 62Ni in the s-process energy range
T. Rauscher (1) · K.H. Guber (2) ((1)Dept. f. Physik und Astronomie, University of Basel, Switzerland; (2)Oak Ridge National Laboratory, Oak Ridge, TN, USA)
Abstract
Direct neutron capture on 62Ni is calculated in the DWBA and the cross sections in the energy range relevant for s-process nucleosynthesis are given. It is confirmed that the thermal value of the capture cross section contains a subthreshold resonance contribution. Contrary to previous investigations it is found that the capture at higher energies is dominated by p-waves, thus leading to a considerably increased cross section at s-process energies and a modified energy dependence.
Comments: 10 pages, 1 figure, corrected typos in Eq. 6 and subsequent paragraph