Goodness of Generalized Seniority in Semi-magic Nuclei

Ashok Kumar Jain; Bhoomika Maheshwari

doi:10.11804/NuclPhysRev.34.01.073

Symmetry plays an important role in understanding the nuclear structure properties from the rotation of a nucleus to the spin, parity and isospin of nuclear states. This simplifies the complexity of the nuclear problems in one way or the other. Seniority is also a well known quantum number which arises due to the symmetry in the pairing interaction of nuclei. We present empirical as well as theoretical evidences based on decay rates which support the goodness of seniority at higher spins as well as in nrich or, n-deficient nuclei. We find that the generalized seniority governs the identical trends of high-spin isomers in different semi-magic chains, where different set of nucleon orbitals from different valence spaces are involved.

Goodness of Generalized Seniority in Semi-magic Nuclei

Department of Physics, Indian Institute of Technology Roorkee, Roorkee 247667, India

Funds: Program of Ministry of Human Resource and Development, Govt. of India

Received Date: 2016-09-20

Rev Recd Date: 2017-03-01

Publish Date: 2017-03-20

Key words:

Abstract: Symmetry plays an important role in understanding the nuclear structure properties from the rotation of a nucleus to the spin, parity and isospin of nuclear states. This simplifies the complexity of the nuclear problems in one way or the other. Seniority is also a well known quantum number which arises due to the symmetry in the pairing interaction of nuclei. We present empirical as well as theoretical evidences based on decay rates which support the goodness of seniority at higher spins as well as in nrich or, n-deficient nuclei. We find that the generalized seniority governs the identical trends of high-spin isomers in different semi-magic chains, where different set of nucleon orbitals from different valence spaces are involved.

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Goodness of Generalized Seniority in Semi-magic Nuclei

doi: 10.11804/NuclPhysRev.34.01.073

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