Abstract
The light \(Z=54\) Xe isotopes in the \(A=130\) region, have been studied in the last 4 decades, in experiment and in theory. For (\(N < 82\)) region, the evolution of the nuclear structure between the analytical symmetries U(5) and O(6) with neutron number N, is shown to be different for \(N=60\hbox {--}68\) and \(N=70\hbox {--}78\). Here we focus on the lighter mass group. The shape transition between U(5) and O(6) symmetry is studied in terms of the variation in quadrupole deformation with N, the variation of the \(\upgamma \)-band and the growth of the \(K^{{\uppi }} \quad =0_{\mathrm {2}}^{\mathrm {+}}\) band and \(0_{\mathrm {3}}^{\mathrm {+}}\) state. The effect of increasing triaxiality varying with N is illustrated. This variation is also reflected in the B(E2) values and the interband E2 transitions. Also, the role of neutrons filling the Nilsson single particle orbits in changing the spectra is studied. The sd interacting boson model IBM-1 is used to reproduce this spectral evolution. The study of the shape change between the analytical symmetries leads to the underlying basic physics.
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My manuscript has associated data in a data repository. [Authors’ comment: The data sets generated during and/or analyzed during the current study are available from the corresponding author on reasonable request.]
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Acknowledgements
J. B. Gupta appreciates the post retirement association with Ramjas College, University of Delhi. The work at Vanderbilt University is supported by the U.S. Department of Energy under Grant no. DE-FG02-88ER40407 and by Vanderbilt University.
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Communicated by Mark Caprio.
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Gupta, J.B., hamilton, J.H. Spectral features of nuclear structure of \(^{114-122}\hbox {Xe}\). Eur. Phys. J. A 57, 97 (2021). https://doi.org/10.1140/epja/s10050-021-00409-8
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DOI: https://doi.org/10.1140/epja/s10050-021-00409-8