Ядерна фізика та енергетика Nuclear Physics and Atomic Energy   ISSN: 1818-331X (Print), 2074-0565 (Online)   Publisher: Institute for Nuclear Research of the National Academy of Sciences of Ukraine   Languages: Ukrainian, English   Periodicity: 4 times per year   Open access peer reviewed journal

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B. Rohila¹, N. Kaur<sup>2,*

1</sup> Department of Physics, Maitreyi College, University of Delhi, Delhi, India
² S. A. Jain College, Ambala City, Haryana, India

^*Corresponding author. E-mail address: nvneet86@gmail.com

Abstract: High spin states of ¹⁴⁰Sm have been populated using the ¹¹⁶Cd (²⁸Si, 4n) ¹⁴⁰Sm heavy ion fusion evaporation reaction. The previously reported level scheme has been considerably modified and extended. Spin and parity assignments have been made using the DCO and IPDCO methods. Multi-quasiparticle configurations have been assigned to various ΔI = 1 and ΔI = 2 bands based on systematic. A band structure similar to ¹⁴⁰Sm has been found in ¹³⁶Ce. So, the alignments in both the nuclei are compared for various band structures having similar band head spin. This helps in assigning the configuration to various band structures. Level structures have been discussed in the framework of the tilted axis cranking model. Lifetimes of states have been measured using the DSAM method.

Keywords: γ-γ coincidence, Indian National Gamma Array (INGA), spectroscopy, RDCO, DSAM.

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