Observation of quasi-γ bands in Te nuclei

• Published in: The European physical journal. A, Hadrons and nuclei Vol. 55; no. 9; pp. 1 - 11
• Main Authors: Tiwary, S. S., Sharma, H. P., Chakraborty, S., Majumder, C., Bhat, G. H., Sheikh, J. A., Baneerjee, P., Ganguly, S., Rai, S., Pragati, Mayank, Kumar, S., Kumar, A., Bhattacharjee, S. S., Singh, R. P., Muralithar, S.
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01-09-2019; Springer Nature B.V
• Subjects: Angular correlation; Asymmetry; Banded structure; Critical point; Hadrons; Heavy Ions; Linear polarization; Nuclear Fusion; Nuclear Physics; Nuclei; Parity; Particle and Nuclear Physics; Physics; Physics and Astronomy; Potential energy; Regular Article - Experimental Physics; Staggering
• ISSN: 1434-6001; 1434-601X
• DOI: 10.1140/epja/i2019-12842-y

.
Excited states of
124
Te have been studied via
122
Sn(
9
Be,
α
3n)
124
Te reaction at 48MeV. The spin and parity of several states have been confirmed on the basis of results of angular correlation (
R
D
C
O
and linear polarization asymmetry measurements. The positive parity band structures of
124
Te and
126
Te have been investigated and the quasi-
γ
bands have been proposed in these nuclei. The structures of these bands have also been discussed under the framework of triaxial projected shell model (TPSM) calculations. The TPSM calculations fairly supported the interpretation of quasi-
γ
bands in
124
Te and
126
Te. The staggering pattern of odd-even spin states of the quasi-
γ
band suggests the
γ
-soft behaviour of
124
Te and the typical values of staggering factors indicate the presence of the
E
(5)-critical point symmetry in
124
Te. The potential energy surface calculations have also been carried out for
124
Te and
126
Te, which also supports the
γ
-soft behaviour for these nuclei.