C-12+C-12 fusion in a multichannel folding model

C-12+C-12 fusion in a multichannel folding model

Author Assuncao, M. Autor UNIFESP Google Scholar
Descouvemont, P. Google Scholar
Institution IOP
Abstract The C-12+C-12 fusion reaction is investigated using a folding potential in a multichannel approach involving the C-12(0(1)(+),2(+), 0(2)(+), 3(-)) states. The C-12 densities (including transition densities) are taken from the RGM calculation of Kamimura. For the nucleon-nucleon interaction, we use the DDM3Y density-dependent interaction. Owing to the explicit presence of inelastic channels, the imaginary part of the optical potential only contains a short-range fusion contribution. The S-factor is then virtually insensitive to the precise value, and the model is free of any fitting parameter. From the coupled-channel system, we determine the elastic and fusion cross sections simultaneously. As elastic data are available around the Coulomb barrier, this simultaneous treatment offers a good test for the reliability of the model. In the fusion cross section, the role of the inelastic channels and, in particular of the C-12(0(1)(+))+C-12(0(2)(+)) channel involving the Hoyle state, is discussed.
Keywords Reaction Cross-Section
Subcoulomb Energies
C-12&C-12
C-12
Scattering
Barrier
Language English
Date 2016
Published in Nuclear Physics In Astrophysics Vi (npa6). Bristol, v. 665, 2016.
ISSN 1742-6588 (Sherpa/Romeo, impact factor)
Publisher Iop Publishing Ltd
Origin http://dx.doi.org/10.1088/1742-6596/665/1/012010
Access rights Open access Open Access
Type Conference paper
Web of Science ID WOS:000368236600010
URI http://repositorio.unifesp.br/handle/11600/49662

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