α-decay lifetime in superheavy nuclei withA>282

2008/03/31 by Madhubrata Bhattacharya, G. Gangopadhyay · 1 citation
Physics and Astronomy · #Atomic and Molecular Physics #Nuclear physics research studies #Quantum Chromodynamics and Particle Interactions #nucl-th

paper · pdf · doi:10.1103/physrevc.77.047302

published as Phys.Rev.C77:047302,2008 · To appear in Physical Rev. C

arxiv created 2008/03/31 · openalex publication_date 2008/04/22 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

Nuclei with A>282 have been studied in the relativistic mean field approach using the force FSU Gold and a zero range pairing interaction. The Euler-Lagrange equations have been solved in the coordinate space. The \ensuremathα-nucleus potential has been constructed with the density-dependent M3Y interaction (DDM3Y1), which has an exponential density dependence, in the double folding model using the nucleon densities in the daughter nucleus and the \ensuremathα particle. Half-lives of \ensuremathα decay have been calculated for tunneling of the \ensuremathα particle through the potential barrier in the WKB approximation and assuming a constant preformation probability. The resulting values agree well with experimental measurements.

Citations

• A New Parameterization for the Lagrangian Density of Relativistic Mean Field Theory
• Effect of Differences in Proton and Neutron Density Distributions on Fission Barriers
• Cluster decay in very heavy nuclei in a relativistic mean field model
• Neutron-Rich Nuclei and Neutron Stars: A New Accurately Calibrated Interaction for the Study of Neutron-Rich Matter

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• Calculation ofα-decay energies of superheavy nuclei in a hybrid method

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