Transfer reactions and sub-barrier fusion in 40Ca + 90, 96Zr |
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Authors: | G. Montagnoli S. Beghini F. Scarlassara A.M. Stefanini L. Corradi C.J. Lin G. Pollarolo Aage Winther |
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Affiliation: | Dipartimento di Fisica, Universitá di Padova, and Istituto Nazionale di Fisica Nucleare, Sezione di Padova, via Marzolo 8, I-35131, Padova, Italy, IT Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Legnaro, I-35020 Legnaro, Padova, Italy, IT Dipartimento di Fisica Teorica, Universitá di Torino, and Istituto Nazionale di Fisica Nucleare, Sezione di Torino, I-10125 Torino, Italy, IT The Niels Bohr Institute, Blegdamsvej 17, DK-2100 Copenhagen ?, Denmark, DK
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Abstract: | 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. Received: 2 May 2002 / Accepted: 4 June 2002 / Published online: 26 November 2002 RID="a" ID="a"e-mail: montagnoli@pd.infn.it, Fax +39049 8277102, Tel. +39049 8277117. RID="b" ID="b"On leave from the China Institute for Atomic Energy, 102413 Beijing, China. Communicated by C. Signorini |
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Keywords: | PACS. 25.70.Hi Transfer reactions – 25.70.Jj Fusion and fusion-fission reactions – 24.10.-i Nuclear-reaction models and methods |
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