Abstract

TheIgo potential is used for the calculation of barrier penetrabilities for ground and excited state transitions of even mass nuclei and for transitions of odd-mass nuclei, measured after 1959. The barrier penetration factors were calculated by numerical integration in the WKB approximation, taking into account centrifugal barrier effects for even-even nuclei, but ignoring noncentral interactions. Using the calculated penetration factors and the experimental alpha half-lives, the reduced level widths were calculated in each case. Hindrance factors for odd-mass alpha-particle emitters are also given.

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