The study of low lying positive parity bands in 162Yb
| dc.contributor.author | Mdletshe, Linda | |
| dc.date.accessioned | 2018-08-03T11:28:44Z | |
| dc.date.available | 2018-08-03T11:28:44Z | |
| dc.date.issued | 2017 | |
| dc.description | A thesis submitted to the Faculty of Science and Agriculture in fulfillment of the requirements of the Degree of Master Of Science in Physics in the Department of Physics at the University of Zululand, 2017 | en_US |
| dc.description.abstract | Over the last decade, iThemba LABS has had an active research program that focuses on the spectroscopy of low lying positive parity bands [1{8], particularly the so-called _ and vibrational bands, which are traditionally associated with the _rst excited K_ = 0+ and K_ = 2+ bands, respectively. Through this program, the nature of these bands has been studied extensively. However, despite this, the microscopic identity of these bands remains elusive in the transitional rare-earth region. This work seeks to give an insight on the microscopic nature of these bands by studying the spectroscopy of 162Yb. The data for the nucleus of interest (162Yb) was collected at iThemba LABS, using the 150Sm (16O, 4n) 162Yb fusion evapora- tion reaction. The rays emitted from the reaction products were detected using the AFRODITE ray spectrometer [9] equipped with escape-suppressed clover detectors. A total of 10 bands have been observed in this work. The DCO and polarization measurements have not only been used to con_rm assignments that were made by previous in-beam works on well established structures [10{12] - but have also been instrumental in the assignment of spins and parities for the majority of newly established bands in 162Yb. Further, the current study has not only con_rmed all the rotational structures reported by previous in-beam works but has also extended the level scheme of 162Yb by establishing 6 new bands. More importantly, a band built on the above-mentioned K_ = 0+ excitation has been identi_ed for the _rst time. In addition, for the _rst time in 162Yb, we also report rotational levels that form band structures of both the odd and even spin components of the K_ = 2+ vibrational band. | en_US |
| dc.identifier.uri | https://hdl.handle.net/10530/1676 | |
| dc.publisher | University of Zululand | en_US |
| dc.subject | low lying --spectroscopy --vibrational bands | en_US |
| dc.title | The study of low lying positive parity bands in 162Yb | en_US |
| dc.type | Thesis | en_US |
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