Comparison of S-matrix and WKB methods for half-width calculations
Journal Article
·
· Physical Review. C, Nuclear Physics
- Department of Physics, Amrita Vishwa Vidyapeetham, Ettimadai Coimbatore 641105 (India)
- Department of Physics, I.I.T. Powai, Mumbai 400076 (India)
The calculated Q values and half widths of {alpha}-decay of superheavy elements using both the S-matrix and the WKB methods are analyzed. The calculations are carried out using the microscopically derived {alpha}-daughter potentials for the parents appearing in the {alpha}-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 {tau}{sub 1/2} values, the former is superior. However, for the case of positive log {tau}{sub 1/2} it is found that the S-matrix method though exact, runs into some numerical difficulti0008.
- OSTI ID:
- 20864069
- Journal Information:
- Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 5 Vol. 74; ISSN 0556-2813; ISSN PRVCAN
- Country of Publication:
- United States
- Language:
- English
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