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Collective states in nuclei and many-body random interactions

R. Bijker·A. Frank
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Abstract

Low-lying collective states in nuclei are investigated in the framework of the interacting boson model using an ensemble of random many-body interactions. It is shown that whenever the number of bosons is sufficiently large compared to the rank of the interactions, the spectral properties are characterized by a dominance of L(P)=0(+) ground states and the occurrence of both vibrational and rotational band structures. This indicates that these features represent a general and robust property of the collective model space.

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R. Bijker, A. Frank. 2000-04-04. Collective states in nuclei and many-body random interactions. https://doi.org/10.1103/physrevc.62.014303

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