Spin isospin excitations and beta+ / EC half lives of medium mass deformed nuclei - INSPIRE

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Spin isospin excitations and beta+ / EC half lives of medium mass deformed nuclei

Sep, 2001

16 pages

Published in:

Nucl.Phys.A 691 (2001) 631

e-Print:

nucl-th/0109028 [nucl-th]

DOI:

10.1016/S0375-9474(01)00565-6

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Abstract:

A selfconsistent approach based on a deformed HF+BCS+QRPA method with density-dependent Skyrme forces is used to describe beta+ decay properties in even-even deformed proton rich nuclei. Residual spin-isospin forces are included in the particle-hole and particle-particle channels. The quasiparticle basis contains neutron-neutron and proton-proton pairing correlations in the BCS approach, while neutron-proton pairing interaction is treated as a residual force in QRPA. We discuss the sensitivity of Gamow-Teller strength distributions and beta+/EC half-lives to deformation, pairing and the strength of the particle-particle interaction. The dependence on deformation is also compared to that of spin M1 strength distributions.

Note:

16 pages, 5 figures Journal-ref: Nucl. Phys. A 691 (2001) 631

23.40.Hc
21.60.Jz
27.50.+e
Nuclear structure
Deformed selfconsistent HF + QRPA
Gamow–Teller strength
Proton-rich nuclei
Shape isomers
Deformed selfconsistent HF [formula omitted]QRPA

References(44)

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