New mechanism for the enhancement of $sd$ dominance in interacting boson models

Details New mechanism for the enhancement of $sd$ dominance in interacting boson models New mechanism for the enhancement of $sd$ dominance in interacting boson models

2001-02-15

arxiv.org/abs/nucl-th/0102034v1

Phys.Rev.Lett.86:4791-4794,2001

Physics

Nuclear Physics

Nuclear Theory

4 pages, 2 figures

Scientific paper

10.1103/PhysRevLett.86.4791

We introduce an exactly solvable model for interacting bosons that extend up to high spin and interact through a repulsive pairing force. The model exhibits a phase transition to a state with almost complete $sd$ dominance. The repulsive pairing interaction that underlies the model has a natural microscopic origin in the Pauli exclusion principle between contituent nucleons. As such, repulsive pairing between bosons seems to provide a new mechanism for the enhancement of $sd$ dominance, giving further support for the validity of the $sd$ Interacting Boson Model.

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