Collective states in nuclei and many-body random interactions

Details Collective states in nuclei and many-body random interactions Collective states in nuclei and many-body random interactions

2000-04-04

arxiv.org/abs/nucl-th/0004002v1

Phys.Rev. C62 (2000) 014303

Physics

Nuclear Physics

Nuclear Theory

9 pages, 6 figures, 1 table, Phys. Rev. C, in press

Scientific paper

10.1103/PhysRevC.62.014303

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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