Authors: Singh, M; Bihari, C; Singh, Y; Gupta, D; Varshney, A K.; Gupta, K K.; Gupta, D K.

Source: Canadian Journal of Physics, Volume 85, Number 8, July 2007 , pp. 899-910(12)

Publisher: NRC Research Press

Abstract:

The present study deals with a topic of current interest, getting clear evidence for triaxiality in the ^120-130 Xe nuclei near A = 130. The odd-even staggering in a so-called gamma-vibrational band may be treated using the asymmetric rotor model (ARM) on employing the Lipas parameter. The Hilbert space is too limited to describe the full variation of the moment of inertia and, therefore, the Lipas Ansatz ismade to correct the ARM energies, which conserve the good result for B(E2) values.PACS Nos.: 21.10.Re, 21.60.Ev, 27.60.+j

Cette étude se concentre sur un sujet d'intérêt actuel en cherchant une preuve manifeste du caractère triaxial des noyaux ^120-130 Xe près de A = 130. L'étalement pair-impair dans la bande dite gamma-vibrationnelle peut être étudié dans le modèle du rotateur asymétrique (ARM) en utilisant le paramètre de Lipas. L'espace de Hilbert est trop limité pour décrire la variation complète du moment d'inertie et l'ansatz de Lipas a pour but de corriger les énergies ARM , tout en préservant les bonnes valeurs des B(E2).[Traduit par la Rédaction]

Document Type: Research article

Publication date: 2007-07-01

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