TY - JOUR

T1 - Comparison of S-matrix and WKB methods for half-width calculations

AU - Mahadevan, S.

AU - Prema, P.

AU - Shastry, C. S.

AU - Gambhir, Y. K.

PY - 2006

Y1 - 2006

N2 - 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.

AB - 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.

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U2 - 10.1103/PhysRevC.74.057601

DO - 10.1103/PhysRevC.74.057601

M3 - Article

AN - SCOPUS:33750856318

SN - 0556-2813

VL - 74

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

IS - 5

M1 - 057601

ER -