Shape coexistence in 153Ho
Abstract
The high-spin states in 153Ho, have been studied by 139 57 La(20Ne, 6n) reaction at a projectile energy of 139 MeV at Variable Energy Cyclotron Centre (VECC), Kolkata, India, utilizing an earlier campaign of Indian National Gamma Array (INGA) setup. Data from gamma-gamma coincidence, directional correlation and polarization measurements have been analyzed to assign and confirm the spins and parities of the levels. We have suggested a few additions and revisions of the reported level scheme of 153Ho. The RF-gamma time difference spectra have been useful to confirm the half-life of an isomer in this nucleus. From the comparison of experimental and theoretical results, it is found that there are definite indications of shape coexistence in this nucleus. The experimental and calculated lifetimes of several isomers have been compared to follow the coexistence and evolution of shape with increasing spin.
Keywords
Cite
@article{arxiv.1607.06954,
title = {Shape coexistence in 153Ho},
author = {Dibyadyuti Pramanik and S. Sarkar and M. Saha Sarkar and Abhijit Bisoi and Sudatta Ray and Shinjinee Dasgupta and A. Chakraborty and Krishichayan and Ritesh Kshetri and Indrani Ray and S. Ganguly and M. K. Pradhan and M. Ray Basu and R. Raut and G. Ganguly and S. S. Ghugre and A. K. Sinha and S. K. Basu and S. Bhattacharya and A. Mukherjee and P. Banerjee and A. Goswami},
journal= {arXiv preprint arXiv:1607.06954},
year = {2016}
}
Comments
Accepted for publication in Physical Review C as a regular article