Gamow-Teller transitions and deformation in the proton-neutron random phase approximation

Details Gamow-Teller transitions and deformation in the proton-neutron random phase approximation Gamow-Teller transitions and deformation in the proton-neutron random phase approximation

2003-09-16

arxiv.org/abs/nucl-th/0309043v2

Phys.Rev. C69 (2004) 024311

Physics

Nuclear Physics

Nuclear Theory

8 pages, 5 figures; added references, clarified discussion with regards to stability

Scientific paper

10.1103/PhysRevC.69.024311

We investigate reliability of Gamow-Teller transition strengths computed in the proton-neutron random phase approximation, comparing with exact results from diagonalization in full $0\hbar\omega$ shell-model spaces. By allowing the Hartree-Fock state to be deformed, we obtain good results for a wide variety of nuclides, even though we do not project onto good angular momentum. We suggest that deformation is as important or more so than pairing for Gamow-Teller transitions.

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