Identification Of Chiral Bands In 135Ce

High spin states in 135Ce were studied following the 124Sn(16O, 5n)135Ce reaction with an array of 8 Compton suppressed clover detectors and a multiplicity filter consisting of 14 NaI(T1) detectors. The decay scheme of 135Ce shows a pair of I = 1 bands which have nearly degenerate energies. The leve...

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Bibliographic Details
Published in:AIP conference proceedings 2005-04, Vol.764 (1), p.99-104
Main Authors: Jain, H C, Lakshmi, S, Joshi, P K
Format: Article
Language:English
Subjects:
CERIUM 135
CHIRALITY
HIGH SPIN STATES
LIFETIME
MOMENT OF INERTIA
MULTIPLICITY
NAI DETECTORS
NEUTRONS
NUCLEAR DECAY
NUCLEAR PHYSICS AND RADIATION PHYSICS
NUCLEAR STRUCTURE
OXYGEN 16
OXYGEN 16 REACTIONS
RADIOACTIVITY
SPIN
TIN 124
TIN 124 TARGET
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Summary:High spin states in 135Ce were studied following the 124Sn(16O, 5n)135Ce reaction with an array of 8 Compton suppressed clover detectors and a multiplicity filter consisting of 14 NaI(T1) detectors. The decay scheme of 135Ce shows a pair of I = 1 bands which have nearly degenerate energies. The levels in two bands cross each other near the band head spin and again close to the highest spin. Both these bands have similar intensity and moment of inertia. Inter-band transitions have been observed in both directions. Both the bands have also similar ratios with increasing rotational frequency. Lifetimes of levels up to a spin of 41/2 have been measured to obtain inband B(M1), B(E2) values and the ratios of the infra band and inter band B(M1) values. It has been concluded from the present observations that these bands may form a `Chiral doublet' in 135Ce.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.1905297