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

Autori
Nikšić, Tamara ; Vretenar, Dario ; Ring, Peter

Izvornik
Physical Review C (0556-2813) 73 (2006), 3;

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
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

Sažetak
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.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

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