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Journal Articles Physical Review C Year : 2014

Precise comparison of the Gaussian expansion method and the Gamow shell model

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Abstract

We perform a detailed comparison of results of the Gamow Shell Model (GSM) and the Gaussian Expansion Method (GEM) supplemented by the complex scaling (CS) method for the same translationally-invariant cluster-orbital shell model (COSM) Hamiltonian. As a benchmark test, we calculate the ground state $0^{+}$ and the first excited state $2^{+}$ of mirror nuclei $^{6}$He and $^{6}$Be in the model space consisting of two valence nucleons in $p$-shell outside of a $^{4}$He core. We find a good overall agreement of results obtained in these two different approaches, also for many-body resonances.

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in2p3-00955159 , version 1 (04-03-2014)

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H. Masui, K. Kato, N. Michel, M. Ploszajczak. Precise comparison of the Gaussian expansion method and the Gamow shell model. Physical Review C, 2014, 89, pp.044317. ⟨10.1103/PhysRevC.89.044317⟩. ⟨in2p3-00955159⟩
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