Shell-model calculation of the β+ strength from 115Xe

Martinsen, Paul; Randrup, J.

doi:10.1016/0375-9474(72)90718-x

Cited by 13 publications

(1 citation statement)

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“…Starting with a simple shell model plus pairing approach, calculations of the GT strength function have been performed with the inclusion of the GT force as residual interaction by using the random phase approximation [25]. Details on the mathematical procedures and tests of the method may be found in [56,57]. In qualitative agreement with recent measurements of the GT strength distribution via charge exchange reactions (see e.g.…”

Section: The ~--Strength Functionsmentioning

confidence: 93%

The beta-decay of95Rb and97Rb

Kratz

Ohm

Schröder³

et al. 1983

Z Physik A

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The /~-decay of 377ms 95Rb and 168ms 97Rb has been thoroughly investigated by means of 7-ray, conversion electron and /Ldelayed neutron spectroscopy. More than 97 % of the /~-decay to particle-bound states has been placed in level schemes of 95Sr and 97Sr. High-resolution neutron spectroscopic studies have allowed to extend the knowledge of the excitation spectra up to 9 MeV, respectively 10 MeV. The density of neutron-unbound levels in 95Sr and 97Sr has been derived from peak stripping analyses of the neutron spectra. Beta-strength functions (S~(E)) have been investigated in detail.They indicate that Gamow-Teller /~-decay of both precursors is dominated by nuclear structure. The discovered pronounced resonances and the variation in the shape of So(E ) are compared with predictions from the gross theory of/3-decay and shell model calculations in the random phase approximation (RPA).

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Section: The ~--Strength Functionsmentioning

confidence: 93%