Heavy residue excitation functions for the collisions 6, 7Li+64Zn near the Coulomb barrier

Di Pietro, A. and Figuera, P. and Strano, E. and Fisichella, M. and Goryunov, O. and Lattuada, M. and Maiolino, C. and Marchetta, C. and Milin, Matko and Musumarra, A. and Ostashko, V. and Pellegriti, M. G. and Privitera, V. and Randisi, G. and Romano, L. and Santonocito, D. and Scuderi, V. and Torresi, D. and Zadro, Mile (2013) Heavy residue excitation functions for the collisions 6, 7Li+64Zn near the Coulomb barrier. Physical Review C, 87 (6). pp. 64614-10. ISSN 0556-2813

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Abstract

Excitation functions for the production of heavy residues have been measured for the collisions 6, 7Li+64Zn at energies around and below the Coulomb barrier. The cross sections for heavy residue production have been measured using an activation technique, detecting off-line the characteristic atomic x-rays emitted in the electron capture decay of the reaction products. The experimental relative yields of the residues have been compared with statistical model calculations performed by using the code cascade. Such a comparison suggests that heavy residue production is dominated by complete fusion at above-barrier energies, whereas different processes like incomplete fusion and/or transfer become dominant in the sub-barrier energy region. The heavy residue excitation function ratio between the 6Li- and 7Li-induced collisions shows an increasing trend as the energy decreases below the barrier.

Item Type: Article
Keywords: heavy residue excitation functions, activation technique, statistical model
Date: June 2013
Subjects: NATURAL SCIENCES > Physics
Additional Information: Copyright (2013) by the American Physical Society.
Divisions: Faculty of Science > Department of Physics
Project code: 098-1191005-2890
Publisher: American Physical Society
Depositing User: Gordana Stubičan Ladešić
Date Deposited: 11 Jul 2014 07:42
Last Modified: 23 Feb 2016 15:24
URI: http://digre.pmf.unizg.hr/id/eprint/2208

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