Eur. Phys. J. A 13, 273-275 (2002)

Note

Elastic -transfer in the elastic scattering of

S. Szilner^{1, 2}, W. von Oertzen³, Z. Basrak¹, F. Haas² and M. Milin<sup>1, 3

1</sup>  Ruder Boskovic Institute, HR-10 002 Zagreb, Croatia
²  Institut de Recherches Subatomiques, CNRS-IN2P3/ULP, Strasbourg, France
³  Hahn-Meitner-Institut, 14109 Berlin, Germany

suzana.szilner@lnl.infn.it

(Received: 22 October 2001 / Revised version: 14 January 2002 Communicated by D. Guerreau )

Abstract
The elastic-scattering angular distributions at ¹⁶O bombarding energies of 100.0, 115.9 and 124.0 MeV and their optical-model description including the -particle exchange contribution calculated in the Coupled Reaction Channel (CRC) approach are presented. The angular distributions show not only the usual diffraction pattern but also, at larger angles, intermediate structure of refractive origin on which finer oscillations are superimposed. The large-angle features can be consistently described including explicitly the elastic -transfer process and using a refractive optical potential with a deep real part and a weakly absorptive imaginary part.

PACS
25.70.Bc - Elastic and quasielastic scattering.
25.70.-z - Low and intermediate energy heavy-ion reactions.

© Società Italiana di Fisica, Springer-Verlag 2002