Present status of coupled-channels calculations for heavy-ion subbarrier fusion reactions
1 Department of Physics, Tohoku University, Sendai 980-8578, Japan
2 Research Center for Electron Photon Science, Tohoku University, Sendai 982-0826, Japan
3 National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan
4 School of Physical Science and Technology, Southwest University, Chongqing 400715, China
Published online: 11 May 2016
The coupled-channels method has been a standard tool in analyzing heavy-ion fusion reactions at energies around the Coulomb barrier. We investigate three simplifications usually adopted in the coupledchannels calculations. These are i) the exclusion of non-collective excitations, ii) the assumption of coordinate independent coupling strengths, and iii) the harmonic oscillator approximation for multiphonon excitations. In connection to the last point, we propose a novel microscopic method based on the beyond-mean-field approach in order to take into account the anharmonic effects of collective vibrations.
© Owned by the authors, published by EDP Sciences - SIF, 2016
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