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American Physical Society, Physical Review C, 2(69)

DOI: 10.1103/physrevc.69.024311

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

Journal article published in 2003 by Ionel Stetcu ORCID, Calvin W. Johnson
This paper is available in a repository.
This paper is available in a repository.

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Abstract

We investigate reliability of Gamow-Teller transition strengths computed in the proton-neutron random phase approximation, comparing with exact results from diagonalization in full $0\hbarω$ 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.