Octupole Correlation in Xe-Cs-Ba nuclei

Rajesh Kumar¹

1. Dept. of Physics, JCDAV College Dasuya, Punjab, India.

Section:Research Paper, Product Type: Isroset-Journal
Vol.6 , Issue.2 , pp.35-42, Apr-2018

CrossRef-DOI:   https://doi.org/10.26438/ijsrpas/v6i2.3542

Online published on Apr 30, 2018

Copyright © Rajesh Kumar . This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
 

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Abstract :
The nuclei around A∼130 mass region below N = 82 shell closure are γ-soft deformed nuclei at low and intermediate spins, and exhibit various intriguing phenomena. Various possible and associated phenomena have been discussed in order to make it more lucid. Octupole correlation represents the structural behavior of the atomic nuclei at high spin which can arise when nucleons near the Fermi surface occupy states of opposite parity with orbital and total angular momentum differing by 3ħ. A nucleus with octupole deformation has reflection asymmetric shape. It has seen that the maximum octupole coupling occur just above the close shells (Z, N = 34, 56, 88 and 134). Octupole correlation is essential property in order to describe the energy of low lying collective negative parity states and E1/E3 transition strengths. Several theoretical calculations and experimental results have suggested the presence of octupole correlation in Ba, Cs and Xe isotopes. This work highlights the absence of any satisfactory conclusion for octupole correlation and reiterates the need for calculations to be performed for the better results about octupole correlation in this mass region

Key-Words / Index Term :
γ-γ coincidence, spin-parity, fusion evaporation reaction, Electromagnetic transitions, γ-transitions and level energy

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