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

Ionel Stetcu·Calvin W. Johnson
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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.

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Ionel Stetcu, Calvin W. Johnson. 2003-09-25. Gamow-Teller transitions and deformation in the proton-neutron random phase approximation. https://doi.org/10.1103/physrevc.69.024311

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