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Phys. Rev. C 62, 014603 (2000) [7 pages]

Role of 28Si excitations in the sub-barrier fusion of 28Si+120Sn

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Lagy T. Baby*, Vandana Tripathi, J. J. Das, P. Sugathan, N. Madhavan, and A. K. Sinha
Nuclear Science Centre, New Delhi 110 067, India

M. C. Radhakrishna
Department of Physics, Bangalore University, Bangalore 560 056, India

P. V. Madhusudhana Rao
Department of Nuclear Physics, Andhra University, Visakhapatnam 530 003, India

S. K. Hui
Department of Physics, Calcutta University, Calcutta 700 075, India

K. Hagino
Institute for Nuclear Theory, Department of Physics, University of Washington, Seattle, Washington 98195

Received 1 September 1999; published 31 May 2000

Fusion cross sections were measured for the systems 16O and 28Si+120Sn in order to understand the role of specific channels involved in sub-barrier fusion. Fusion cross sections were measured by direct detection of the evaporation residues. Extracted fusion barrier distributions were analyzed using the exact coupled-channel code CCFULL as well as the simplified code CCMOD. These calculations show that the observed fusion barrier distribution for the Si+Sn system is reproduced only if the rotational excitation in 28Si is taken into account.

© 2000 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevC.62.014603
DOI:
10.1103/PhysRevC.62.014603
PACS:
25.70.Jj, 24.10.Eq, 25.70.Jj, 24.10.Eq

*Affiliation: Department of Physics, Bangalore University, Bangalore 560 056, India; electronic address: lagy@tifr.res.in; present address: Department of Nuclear and Atomic Physics, Tata Institute of Fundamental Research, Mumbai 400 005, India.

 
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