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Effective liquid drop description for alpha decay of atomic nuclei

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Alpha-decay half-lives are presented in the framework of an effective liquid drop model for different combinations of mass transfer descriptions and inertia coefficients. Calculated half-life values for ground-state-ground-state-favoured alpha transitions are compared with available, updated experimental data. Results have shown that the present model is very suitable to treat the alpha-decay process on an equal footing as cluster radioactivity and cold fission processes. Better agreement with the data is found when the subset of even-even alpha emitters is considered in the calculation.

Document Type: Miscellaneous

Affiliations: 1: Centro Brasileiro de Pesquisas Físicas - CBPF/CNPq, Rua Dr. Xavier Sigaud 150, 22290-180 Rio de Janeiro-RJ, Brazil 2: Instituto de Radioproteção e Dosimetria - IRD/CNEN, Av. Salvador Allende s/n, 22780-160 Rio de Janeiro-RJ, Brazil 3: Instituto de Física, Universidade de São Paulo, Caixa Postal 66318, 05315-970 São Paulo-SP, Brazil

Publication date: September 1, 1998


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