Complex energy approaches for calculating isobaric analogue states

Details Complex energy approaches for calculating isobaric analogue states Complex energy approaches for calculating isobaric analogue states

2008-06-30

arxiv.org/abs/0806.4871v1

Phys.Rev.C78:044308,2008

Physics

Nuclear Physics

Nuclear Theory

3 figures

Scientific paper

10.1103/PhysRevC.78.044308

Two methods the complex energy shell model (CXSM) and the complex scaling (CS) approach were used for calculating isobaric analog resonances (IAR) in the Lane model. The IAR parameters calculated by the CXSM and the CS methods were checked against the parameters extracted from the direct numerical solution of the coupled channel Lane equations (CC). The agreement with the CC results was generally better than 1 keV for both methods and for each partial waves concerned. Similarities and differences of the CXSM and the CS methods are discussed. CXSM offers a direct way to study the configurations of the IAR wave function in contrast to the CS method.

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