Studies of multi-nucleon transfer reactions in 90Zr(18O,X) and 90Zr(16O,X)
Nuclear Physics Division, B.A.R.C., 400 085, Mumbai, India
2 Institute of Kernphysik, Forschungszentrum, Juelich, Germany
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Multi-nucleon transfer reactions in 18O + 90Zr and 16O + 90Zr have been studied at an incident energy of 90 MeV. The energy spectra and angular distributions are measured. The data have been analyzed to obtain cross-section dependence on the number of nucleons transferred and on the ground-state Q-values. In the 90Zr(18O, X); X = 16O, 17,16,15,14N, 14,13,12C, 12,11,10B, 10,9,7Be and 7,6Li reactions, 2n and 2n-correlated transfer cross-sections are observed to be enhanced as compared to the 16O + 90Zr reaction. A detailed comparison in the multi-particle stripping and elastic-scattering cross-section between these two systems are made in order to investigate the possible influence of the two valence neutrons in 18O nucleus. Diffractional model DWBA calculations, based on the direct surface transfer model, have been performed to understand the reaction mechanism of multi-nucleon transfer to continuum.
© Società Italiana di Fisica and Springer-Verlag, 2004