Comparison of S-matrix and WKB methods for half-width calculations

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

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

The calculated Q values and half widths of α-decay of superheavy elements using both the S-matrix and the WKB methods are analyzed. The calculations are carried out using the microscopically derived α-daughter potentials for the parents appearing in the α-decay chain of super heavy element (A=277,Z=112). Both the S-matrix and the WKB methods though yield comparable results for smaller, in fact negative log τ1/2 values, the former is superior. However, for the case of positive log τ1/2 it is found that the S-matrix method though exact, runs into some numerical difficulties.

Original languageEnglish
Article number057601
JournalPhysical Review C - Nuclear Physics
Volume74
Issue number5
DOIs
Publication statusPublished - 2006

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

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