A spherical-box approach for resonances in the presence of the Coulomb interaction
Shan-Gui ZhouCenter of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000, People's Republic of ChinaJie MengCenter of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000, People's Republic of ChinaEn-Guang ZhaoCenter of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000, People's Republic of China
2009en
ABI
Abstract
The spherical-box approach is extended to calculate the resonance parameters and the real part of the wavefunction for single particle resonances in a potential containing the long-range Coulomb interaction. A model potential is taken to demonstrate the ability and accuracy of this approach. The calculated resonance parameters are compared with available results from other methods. It is shown that in the presence of the Coulomb interaction, the spherical-box approach works well for not so broad resonances. In particular, for very narrow resonances, the present method gives resonance parameters to a very high precision.
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Cited by 20 references