IJPTT

Meanlives Predictions for Rotational Excited Ground Band States for Even-Even Nuclei in Rare Earth and Actinide Series

	International Journal of Computer & Organization Trends  (IJCOT)
	© 2020 by IJCOT Journal
	Volume - 10 Issue - 3
	Year of Publication : 2020
	Authors :  Biniyam Nigussie Edae, Ashok Kumar Chaubey

Citation

MLA Style:Biniyam Nigussie Edae, Ashok Kumar Chaubey  "Meanlives Predictions for Rotational Excited Ground Band States for Even-Even Nuclei in Rare Earth and Actinide Series" International Journal of Computer and Organization Trends 10.3 (2020): 14-20. 

APA Style:Biniyam Nigussie Edae, Ashok Kumar Chaubey(2020). Meanlives Predictions for Rotational Excited Ground Band States for Even-Even Nuclei in Rare Earth and Actinide Series. International Journal of Computer and Organization Trends, 10(3), 14-20.

Abstract

The measurement of mean life of excited states in nuclei is one of the most active areas of nuclear structure physics. In this work the asymmetric rotor model of Davydov- Filippov (DF) has been employed to study the mean lifetime in the rotational excited ground state band even-even nuclei of rare earth and actinide series which comprises of 57 nuclides. The mean life for E2-transitions raging up to 12+ spin states transi-tions have been studied in detailed in the spectra of nuclei whose mass number ranges as 150<=A<=190 and A>=228, and for those the first excited state 2+ and the second excited state 2+’ gamma band energies are available. The best input parameters have been em-ployed. These input parameters includes the energy involved in the transition, the total internal conversion coefficient, and the empirical reduced transition proba-bility B(E2). The mean lifetime have been calculated by using the most recent available experimental data. Comparison of results of theoretical calculations with the corresponding experimental data shows a very good agreement, including high angular momentum states. This work has incorporated many nuclides and transi-tions for which neither experimental nor theoretical values are available.

References

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Keywords
asymmetric rotor model, reduced transition probabilities, internal conversion coefficient, mean life.