Effect of the reduced pairing interaction on α-decay half-lives of multi-quasiparticle isomeric states

J. Rissanen, R. M. Clark, A. O. Macchiavelli, P. Fallon, C. M. Campbell, and A. Wiens
Phys. Rev. C 90, 044324 – Published 31 October 2014

Abstract

The role of the pairing interaction in multi-quasiparticle isomeric states was examined by calculating α-decay half-lives with the superfluid tunneling model. We found that this model reproduces the experimental α-decay half-lives with an accuracy typical of current α-decay models. In spite of the simplicity of the model, we are able to demonstrate how the reduction of pairing in multi-quasiparticle isomers has a remarkable effect on α-decay half-lives. Taking this effect into account may be important for spin and parity assignments of α-decaying multi-quasiparticle isomers.

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  • Received 19 June 2014

DOI:https://doi.org/10.1103/PhysRevC.90.044324

©2014 American Physical Society

Authors & Affiliations

J. Rissanen*, R. M. Clark, A. O. Macchiavelli, P. Fallon, C. M. Campbell, and A. Wiens

  • Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA

  • *juhorissanen@lbl.gov

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Vol. 90, Iss. 4 — October 2014

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