Beyond the relativistic mean-field approximation: Configuration mixing of angular-momentum-projected wave functions

Nikšić, Tamara and Vretenar, Dario and Ring, Peter (2006) Beyond the relativistic mean-field approximation: Configuration mixing of angular-momentum-projected wave functions. Physical Review C, 73 (3). pp. 34308-17. ISSN 0556-2813

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Abstract

We report the first study of restoration of rotational symmetry and fluctuations of the quadrupole deformation in the framework of relativistic mean-field models. A model is developed that uses the generator coordinate method to perform configuration mixing calculations of angular-momentum-projected wave functions, calculated in a relativistic point-coupling model. The geometry is restricted to axially symmetric shapes, and the intrinsic wave functions are generated from the solutions of the constrained relativistic mean-field + BCS equations in an axially deformed oscillator basis. A number of illustrative calculations are performed for the nuclei 194Hg and 32Mg, in comparison with results obtained in nonrelativistic models based on Skyrme and Gogny effective interactions.

Item Type: Article
Keywords: Hartree-Fock and random-phase approximations in nuclei, nuclear single-particle levels and strength functions, nuclear collective levels, forces in hadronic systems and nuclear effective interactions
Date: March 2006
Subjects: NATURAL SCIENCES > Physics
Additional Information: Copyright (2006) by the American Physical Society.
Divisions: Faculty of Science > Department of Physics
Project code: 119250
Publisher: American Physical Society
Depositing User: Gordana Stubičan Ladešić
Date Deposited: 24 May 2014 14:18
Last Modified: 24 May 2014 14:18
URI: http://digre.pmf.unizg.hr/id/eprint/1681

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