Transfer reactions and sub-barrier fusion inG. Montagnoli1, S. Beghini1, F. Scarlassara1, A.M. Stefanini2, L. Corradi2, C.J. Lin2, G. Pollarolo3 and Aage Winther4
1 Dipartimento di Fisica, Universitá di Padova, and Istituto Nazionale di Fisica Nucleare, Sezione di Padova, via Marzolo 8, I-35131, Padova, Italy
2 Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Legnaro, I-35020 Legnaro, Padova, Italy
3 Dipartimento di Fisica Teorica, Universitá di Torino, and Istituto Nazionale di Fisica Nucleare, Sezione di Torino, I-10125 Torino, Italy
4 The Niels Bohr Institute, Blegdamsvej 17, DK-2100 Copenhagen Ø, Denmark
(Received: 2 May 2002 / Revised version: 4 June 2002 / Published online: 26 November 2002)
The two systems 40Ca + 90,96Zr have been studied by measuring nucleon transfer reactions at two energies near the Coulomb barrier, thus complementing the available sub-barrier fusion cross-sections. Angular distributions for various transfer channels have been determined. Significantly larger neutron transfer cross-sections are found for the target 96Zr that exhibits the larger enhancement in the sub-barrier fusion cross-sections. All data have been analyzed with a new model for heavy-ion collisions that calculates simultaneously transfer cross-sections, fusion excitation functions and barrier distributions. The model gives a good account of both transfer and fusion data.
25.70.Hi - Transfer reactions.
25.70.Jj - Fusion and fusion-fission reactions.
24.10.-i - Nuclear-reaction models and methods.
© Società Italiana di Fisica, Springer-Verlag 2002