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- Title
Isotopic effects in elastic and inelastic <sup>12</sup>C + <sup>16, 18</sup>O scattering.
- Authors
Rudchik, A. T.; Shyrma, Yu. O.; Kemper, K. W.; Rusek, K.; Koshchy, E.; Kliczewski, S.; Novatsky, B. G.; Ponkratenko, O. A.; Piasecki, E.; Romanyshyna, G. P.; Stepanenko, Yu. M.; Strojek, I.; Sakuta, S. B.; Budzanowski, A.; Głowacka, L.; Skwirczyńska, I.; Siudak, R.; Choiński, J.; Szczurek, A.
- Abstract
Complete angular distributions of the 12C + 18O elastic and inelastic scattering were measured at the energy Elab(18O) = 105 MeV ( Ec.m. = 42 MeV) . Comparison of these elastic-scattering data with those from previously measured 12C + 16O data show their large-angle cross-sections to differ by as much as a factor of 100 with the 16O data being the largest. These and the 12C + 18O scattering data taken from the literature at the energies Ec.m. = 12.9-56 MeV were analysed within the optical model and coupled-reaction-channels methods. Sets of Woods-Saxon 12C + 18O optical potential parameters were obtained and their energy dependence was deduced. A similar analysis was carried out for 12C + 16O where it was shown that over a wide energy range, the primary difference in the 16O and 18O scattering potentials is in their imaginary parts. The large-angle enhancement for the 12C + 18O elastic-scattering was shown to arise from the transfer of nucleons. The inelastic-scattering data were well described over the entire angular range as arising from collective excitations of the states in the target and projectile nuclei.
- Subjects
PARTICLES (Nuclear physics); INELASTIC scattering; SCATTERING (Physics); NUCLEAR reactions; ANGULAR distribution (Nuclear physics)
- Publication
European Physical Journal A -- Hadrons & Nuclei, 2010, Vol 44, Issue 2, p221
- ISSN
1434-6001
- Publication type
Article
- DOI
10.1140/epja/i2010-10953-7