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Antibound States and Halo Formation in the Gamow Shell Model

N. Michel·W. Nazarewicz·M. Ploszajczak·J. Rotureau
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Abstract

The open quantum system formulation of the nuclear shell model, the so-called Gamow Shell Model (GSM), is a multi-configurational SM that employs a single-particle basis given by the Berggren ensemble consisting of Gamow states and the non-resonant continuum of scattering states. The GSM is of particular importance for weakly bound/unbound nuclear states where both many-body correlations and the coupling to decay channels are essential. In this context, we investigate the role of l=0 antibound (virtual) neutron single-particle states in the shell model description of loosely bound wave functions, such as the ground state wave function of a halo nucleus 11Li.

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N. Michel, W. Nazarewicz, M. Ploszajczak, J. Rotureau. 2006-09-07. Antibound States and Halo Formation in the Gamow Shell Model. https://doi.org/10.1103/physrevc.74.054305

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