Correlations between nucleon transfer and fusion at near-barrier energies for the systemsS +Ru andS +Zr.

Autor: Corradi, L., Skorka, S., Winkelmann, T., Balog, K., Jänker, P., Leitz, H., Lenz, U., Löbner, K., Rudolph, K., Steinmayer, M., Thies, H., Million, B., Napoli, D., Stefanini, A., Beghini, S., Montagnoli, G., Scarlassara, F., Signorini, C., Soramel, F.
Zdroj: Zeitschrift für Physik A Hadrons & Nuclei; 1993, Vol. 346 Issue 3, p217-226, 10p
Abstrakt: Transfer reactions at two near-barrier energies for the systemsS +Ru have been studied. Differential cross sections have been extracted for a large variety of channels, with a set-up yielding good mass, nuclear charge and energy resolutions. A steeper decrease of the measured angular distributions at backward angles with respect to the prediction of a semiclassical theory is interpreted as a loss of transfer flux feeding more complex channels and/or fusion. Coupled channels calculations, which use the transfer form factors derived from the experiment, reproduce the fusion cross sections at sub-barrier energies. Multi-nucleon transfer seems to play an essential role for the fusion process, as evidenced by the found strong correlations. A systematic comparison is made with the systemsS +Zr, which have been the object of a previous experimental study with the same set-up. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index
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