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Prog. Theor. Phys. Supplement No.154 (2004) pp. 177-183

Near Barrier Fusion Excitation Function of ⁶ Li + ²⁰⁸Pb

Y. W. Wu,¹ Z. H. Liu,¹ C. J. Lin,¹ H. Q. Zhang,¹ M. Ruan,¹ F. Yang,¹ Z. C. Li,¹ M. Trotta² and K. Hagino^3,*

¹China Institute of Atomic Energy, P.O. Box 275(10), Beijing 102413, China
²INFN-Laboratori Nazionali di Legnaro, Viale dell'Universita 2, 35020 Legnaro, Padova, Italy
³Institut de Physique Nucleaire, IN2P3-CNRS, Universite Paris-Sud, F-91406 Orsay Cedex, France

Abstract:

The fusion cross sections of ⁶Li+²⁰⁸Pb system at energies near the barrier have been measured by means of the evaporation residue method and have been calculated in terms of the coupled-channels model, taking into account single and double phonon octupole excitations of ²⁰⁸Pb and the 3⁺ rotational state of ⁶Li. By comparing the experimental results with the theoretical calculations and with the fusion cross sections of ¹⁶O+²⁰⁸Pb, in which no breakup happens, we conclude that the fusion cross sections of ⁶Li+²⁰⁸Pb are suppressed at above barrier energies due to the effects of ⁶Li breakup, but below the barrier, the effects of breakup are not clear.

URL : http://ptp.ipap.jp/link?PTPS/154/177/
DOI : 10.1143/PTPS.154.177

^*On leave from Yukawa Institute for Theoretical Physics, Kyoto University, Kyoto 606-8502, Japan.

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