Abstract.
Complete angular distributions of the 12C + 18O elastic and inelastic scattering were measured at the energy E lab(18O) = 105 MeV (E c.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 E c.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.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
K. Rusek, N. Keeley, K.W. Kemper, R. Raabe, Phys. Rev. C 67, 041604(R) (2003)
S. Szilner, M.P. Nicoli, Z. Basrak, R.M. Freeman, F. Haas, A. Morsad, M.E. Brandan, G.R. Satchler, Phys. Rev. C 64, 064614 (2001)
R. Chechik, Y. Eyal, H. Stocker, Z. Fraenkel, Nucl. Phys. A 296, 307 (1978)
B. Heusch, C. Beck, J.P. Coffin et al., Phys. Rev. C 26, 542 (1982)
S. Szilner, M.P. Nicoli, Z. Basrak, Proceedings of the 7th International Conference on Clustering Aspects of Nuclear Structure and Dynamics, Rab, Croatia, 1999, edited by M. Korolija, Z. Basrak, R. Caplar (World Scientific, Singapore, 2000) p. 180 (Database EXFOR)
J.A. Kuehner, E. Almqvits, D.A. Bromley, Phys. Rev. 131, 1254 (1963)
U.C. Voos, W. Von Oertzen, R. Bock, Nucl. Phys. A 135, 207 (1969)
P. Charles, F. Auger, I. Badawy et al., Phys. Lett. B 62, 289 (1976)
M.E. Brandan, A. Menchaca-Rocha, Phys. Rev. C 23, 1272 (1981)
A.A. Ogloblin, T. Dao Khoa, Y. Kondo et al., Phys. Rev. C 57, 1797 (1998)
M.P. Nicoli, F. Haas, R.M. Freeman et al., Phys. Rev. C 61, 034609 (2000)
A.A. Ogloblin, Yu.A. Glukhov, W.H. Trzaska et al., Phys. Rev. C 62, 044601 (2000)
M.E. Brandan, A. Menchaca-Rocha, M. Buenerd et al., Phys. Rev. C 34, 1484 (1986)
P. Roussel, N. Alamanos, F. Auger et al., Phys. Rev. Lett. 54, 1779 (1985)
M. Kowalczyk, SMAN: A Code for Nuclear Experiments, Warsaw University report (1998) unpublished
J. Specht, G.W. Schweimer, H. Rebel, G. Schatz, R. Lönken, G. Hauser, Nucl. Phys. A 171, 65 (1971)
A.A. Rudchik, A.T. Rudchik, S. Kliczewski et al., Nucl. Phys. A 785, 293 (2007)
Yu.F. Smirnov, Yu.M. Tchuvil$'$sky, Phys. Rev. C 15, 84 (1977)
A.T. Rudchik, Yu.M. Tchuvil$'$sky, The code DESNA, The Kyiv Institute for Nuclear Research report KIYaI-82-12 (1982)
A.T. Rudchik, Yu.M. Tchuvil$'$sky, Ukr. Fiz. Zh. 30, 819 (1985)
A.N. Boyarkina, Structure of 1p-shell Nuclei (Moscow State University, 1973)
B.S. Nilsson, SPI-GENOA: An Optical Model Search Code, Niels Bohr Institute report (1976)
I.J. Thompson, Comput. Phys. Rep. 7, 167 (1988)
A.T. Rudchik, Yu.O. Shyrma, O.A. Ponkratenko, Nucl. Phys. At. Energy 10, 249 (2009)
A.T. Rudchik, Yu.O. Shyrma, E.I. Koshchy et al., Nucl. Phys. At. Energy 10, 376 (2009)
C. Mahaux, H. Ngo, G.R. Satchler, Nucl. Phys. A 449, 354 (1986)
Author information
Authors and Affiliations
Corresponding author
Additional information
Communicated by N. Alamanos
Rights and permissions
About this article
Cite this article
Rudchik, A.T., Shyrma, Y.O., Kemper, K.W. et al. Isotopic effects in elastic and inelastic 12C + 16, 18O scattering. Eur. Phys. J. A 44, 221–231 (2010). https://doi.org/10.1140/epja/i2010-10953-7
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1140/epja/i2010-10953-7