nucl-th digest · Aug 13, 2018

Different seniority states of $^{119 - 126}$ Sn isotopes: shell model description

Praveen C. Srivastava🇮🇳 · Bharti Bhoy · M. J. Ermamatov🇺🇿

In the present work available experimental data up to high-spin states of $^{119 - 126}$ Sn isotopes with different seniority ( $v$ ), including $v$ = 4, 5, 6, and 7 have been interpreted with shell model, by performing full-fledged shell model calculations in the 50-82 valence shell composed of $1 g_{7/2}$ , $2 d_{5/2}$ , $1 h_{11/2}$ , $3 s_{1/2}$ , and $2 d_{3/2}$ orbitals. The results have been compared with the available experimental data. These states are described in terms of broken neutron pairs occupying the $h_{11/2}$ orbital. Possible configurations of seniority isomers in these nuclei are discussed. The breaking of three neutron pairs have been responsible for generating high-spin states. The isomeric states $5^{-}$ , $7^{-}$ , $1 0^{+}$ and $1 5^{-}$ of even Sn isotopes, and isomeric states $19/ 2^{+}$ , $23/ 2^{+}$ , $27/ 2^{-}$ and $35/ 2^{+}$ of odd Sn isotopes, are described in terms of different seniority. For even-Sn isotopes, the isomeric states $5^{-}$ , $7^{-}$ , and $1 0^{+}$ are due to seniority $v$ = 2; the isomeric state $1 5^{-}$ is due to seniority $v$ = 4, and in the case of odd-Sn isotopes, the isomeric states $19/ 2^{+}$ , $23/ 2^{+}$ , and $27/ 2^{-}$ are due to seniority $v$ = 3, and the isomeric state $35/ 2^{+}$ in $^{123}$ Sn is due to seniority $v$ = 5. These are maximally-aligned spin, which involve successive pair breakings in the $ν (h_{11/2})$ orbit.

nucl-thPTEP(2019)·5 citations

Monday·August 13, 2018

Nucleon- $α$ Scattering and Resonances in $^{5}$ He and $^{5}$ Li with JISP16 and Daejeon16 $N N$ interactions

Different seniority states of $^{119 - 126}$ Sn isotopes: shell model description

Affiliations

Nucleon-α Scattering and Resonances in 5He and 5Li with JISP16 and Daejeon16 NN interactions

Different seniority states of 119−126Sn isotopes: shell model description

Affiliations

Nucleon- $α$ Scattering and Resonances in $^{5}$ He and $^{5}$ Li with JISP16 and Daejeon16 $N N$ interactions

Different seniority states of $^{119 - 126}$ Sn isotopes: shell model description