2005/03/30 by P. Sarriguren, R. Alvarez-Rodriguez, R. Álvarez-Rodrıguez +1 · 36 citations
Physics and Astronomy · #Basis (linear algebra) #Deformation (meteorology) #Formalism (music) #High-Energy Particle Collisions Research #Nuclear physics research studies #Quantum Chromodynamics and Particle Interactions #Quasiparticle #Residual #Separable space #nucl-th
paper · pdf · doi:10.1140/epja/i2004-10146-1
published in The European Physical Journal A 24(2), 193-198 (Springer Science+Business Media) · 8 pages, 4 figures, to be published in Eur. Phys. J. A
arxiv created 2005/03/30 · openalex publication_date 2005/04/11 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
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.