Comparison of Gamow-Teller strengths in the random phase approximation

Abstract

The Gamow-Teller response is astrophysically important for a number of nuclides, particularly around iron. The random phase approximation (RPA) is an efficient way to generate strength distributions. In order to better understand both theoretical systematics and uncertainties, we compare the Gamow-Teller strength distributions for a suite of nuclides and for a suite of interactions, including semi-realistic interactions in the $1p$-$0f$ space with the RPA and a separable multi-shell interaction in the quasi-particle RPA. We also compare with experimental results for GT${}_{-}$ on $54$Fe.

23 pages, 2 tables, 7 figures; corrections made due to bug in program, errors in interpreting scaling factors; changes made at referee request

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Cited by in corpus (5)

• First-forbidden $\beta$-decay rates, energy rates of $\beta$-delayed neutrons and probability of $\beta$-delayed neutron emissions for neutron-rich nickel isotopes
• Study of Gamow-Teller transitions in isotopes of titanium within the quasi particle random phase approximation
• Spin-isospin transitions in chromium isotopes within the quasiparticle random phase approximation
• Investigation of Gamow Teller Transition Properties in 56-64Ni Isotopes Using QRPA Methods
• A modified Brink-Axel hypothesis for astrophysical Gamow-Teller transitions