S-matrix-based unified calculation of Q-values and half-lives of α-decay of super heavy elements

P. Prema, S. Mahadevan, C. S. Shastry, Y. K. Gambhir

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The Q-values and half-lives of several heavy α decaying systems are calculated using the relativistic mean field (RMF) theory-based microscopic α-daughter nucleus potential. A unified procedure is adopted, using analytic S-matrix method and treating α-decay as the decay of the resonance state of the α-daughter nucleus system. The resonance parameters are obtained from the pole positions of the S-matrix in the complex k-plane and using these Q-values and half widths are evaluated. The calculation reproduces the experimental results well. We find that the present unified approach gives a good description of the data and compare well with those obtained by empirical formulae.

Original languageEnglish
Pages (from-to)2033-2043
Number of pages11
JournalInternational Journal of Modern Physics E
Issue number10
Publication statusPublished - 10-2010


All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Physics and Astronomy(all)

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