A unified view of the first-excited 2(+)and 3(-)states of Cd, Sn and Te isotopes

Maheshwari, Bhoomika (2020) A unified view of the first-excited 2(+)and 3(-)states of Cd, Sn and Te isotopes. EUROPEAN PHYSICAL JOURNAL-SPECIAL TOPICS, 229 (14-15,). pp. 2485-2495. ISSN 19516355, DOI https://doi.org/10.1140/epjst/e2020-000097-3.

Full text not available from this repository.


Symmetries are known to play an important role in the low-lying level structure of Sn isotopes, mostly in terms of the seniority and generalized seniority schemes. In this paper, we revisit the multi-jgeneralized seniority approach for the first excited 2(+)and 3(-)states in the Cd (Z= 48), Sn (Z= 50) and Te (Z= 52) isotopes, where the Cd and Te isotopes represent two-proton hole and two-proton particle nuclei, thus involving both kind of particles (protons and neutrons) in contrast to Sn isotopes. Interestingly, the approach based on neutron valence space alone is able to explain the B(E2) and B(E3) trends respectively for the 2(+)and 3(-)states in all the three Cd, Sn and Te isotopes. The new results on the inverted parabolic behaviour of B(E3) values in Cd and Te isotopes are understood in a manner identical to that of Sn isotopes by using the generalized seniority scheme. No shell quenching is supported by these calculations; hence, the neutron magic numbers,N= 50 andN= 82, remain robust in these isotopic chains. It is quite surprising that the generalized seniority continues to be reasonably successful away from the semi-magic region, thus providing a unifying view of the 2(+)and 3(-)states.

Item Type: Article
Funders: None
Uncontrolled Keywords: isotopes;
Subjects: Q Science > QC Physics
Divisions: Faculty of Science > Department of Physics
Depositing User: Ms Zaharah Ramly
Date Deposited: 28 Dec 2023 13:20
Last Modified: 28 Dec 2023 13:20
URI: http://eprints.um.edu.my/id/eprint/36374

Actions (login required)

View Item View Item