Towards a practical approach for self-consistent large amplitude collective motion

Details Towards a practical approach for self-consistent large amplitude collective motion Towards a practical approach for self-consistent large amplitude collective motion

2003-04-23

arxiv.org/abs/nucl-th/0304074v2

Phys.Rev. C69 (2004) 024302

Physics

Nuclear Physics

Nuclear Theory

19 pages, 8 figures Revised version To be published in Phys. Rev. C

Scientific paper

10.1103/PhysRevC.69.024302

We investigate the use of an operatorial basis in a self-consistent theory of large amplitude collective motion. For the example of the pairing-plus-quadrupole model, which has been studied previously at equilibrium, we show that a small set of carefully chosen state-dependent basis operators is sufficient to approximate the exact solution of the problem accuratly. This approximation is used to study the interplay of quadrupole and pairing degrees of freedom along the collective path for realistic examples of nuclei. We show how this leads to a viable calculational scheme for studying nuclear structure, and discuss the surprising role of pairing collapse.

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