2005/05/26 by Y. K. Gambhir, A. Bhagwat, M. Gupta +1 · 1 citation
Physics and Astronomy · #Atomic and Molecular Physics #Atomic physics #Field (mathematics) #Ground state #Mean field theory #Nuclear physics #Nuclear physics research studies #Nucleon #Physics #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #Scattering #WKB approximation #nucl-th
paper · pdf · doi:10.1016/j.aop.2005.05.009
published as Annals Phys. 320 (2005) 429-452 · Accepted for publication in Annals of Physics (NY)
arxiv created 2005/05/26 · openalex publication_date 2005/08/11 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
The results of extensive microscopic Relativistic Mean Field (RMF) calculations for the nuclei appearing in the alpha - decay chains of recently discovered superheavy elements with Z = 109 to 118 are presented and discussed. The calculated ground state properties like total binding energies, Q values, deformations, radii and densities closely agree with the corresponding experimental data, where available. The double folding (t-rho-rho) approximation is used to calculate the interaction potential between the daughter and the alpha, using RMF densities along with the density dependent nucleon - nucleon interaction (M3Y). This in turn, is employed within the WKB approximation to estimate the half lives without any additional parameter for alpha - decay. The half lives are highly sensitive to the Q values used and qualitatively agree with the corresponding experimental values. The use of experimental Q values in the WKB approximation improves the agreement with the experiment, indicating that the resulting interaction potential is reliable and can be used with confidence as the real part of the optical potential in other scattering and reaction processes.