Isospin-symmetry restoration within the nuclear density functional theory: formalism and applications

Details Isospin-symmetry restoration within the nuclear density functional theory: formalism and applications Isospin-symmetry restoration within the nuclear density functional theory: formalism and applications

2009-12-22

arxiv.org/abs/0912.4381v1

Phys.Rev.C81:054310,2010

Physics

Nuclear Physics

Nuclear Theory

13 pages, 7 figures, submitted to Phys. Rev. C

Scientific paper

10.1103/PhysRevC.81.054310

Isospin symmetry of atomic nuclei is explicitly broken by the charge-dependent interactions, primarily the Coulomb force. Within the nuclear density functional theory, isospin is also broken spontaneously. We propose a projection scheme rooted in a mean field theory, that allows the consistent treatment of isospin breaking in both ground and exited nuclear states. We demonstrate that this scheme is essentially free from spurious divergences plaguing particle-number and angular-momentum restoration approaches. Applications of the new technique include excited high-spin states in medium-mass N=Z nuclei, such as superdeformed bands and many-particle-many-hole terminating states.

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