Half-lives of rp-process waiting point nuclei

Details Half-lives of rp-process waiting point nuclei Half-lives of rp-process waiting point nuclei

2005-03-30

arxiv.org/abs/nucl-th/0503079v1

Eur. Phys. J. A 24, 193 (2005)

Physics

Nuclear Physics

Nuclear Theory

8 pages, 4 figures, to be published in Eur. Phys. J. A

Scientific paper

10.1140/epja/i2004-10146-1

We give results of microscopic calculations for the half-lives of various proton-rich nuclei in the mass region A=60-90, which are involved in the astrophysical rp-process, and which are needed as input parameters of numerical simulations in Nuclear Astrophysics. The microscopic formalism consists of a deformed QRPA approach that involves a selfconsistent quasiparticle deformed Skyrme Hartree-Fock basis and residual spin-isospin separable forces in both the particle-hole and particle-particle channels. The strength of the particle-hole residual interaction is chosen to be consistent with the Skyrme effective force and mean field basis, while that of the particle-particle is globally fixed to 0.07 MeV after a judicious choice from comparison to experimental half-lives. We study and discuss the sensitivity of the half-lives to deformation and residual interactions.

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