2005Physical Review CRequires access

Projected shell model description of high spin states in Ce124

Rani Devi, B D Sehgal, S. K. Khosa, J. A. Sheikh

Open publisher page 12 citations

Abstract

The projected shell model is used to study the positive parity bands in $^{124}\mathrm{Ce}$. The energy spectra, transition quadrupole moments, and gyromagnetic factors are calculated. The calculation reproduces the observed positive parity bands. The peak in g-factors at spin $I=14$ is predicted due to proton alignment arising from the two quasiparticle (2-qp) band crossing. The wave functions of yrast states at $I=14$ to 20 are dominated by the two quasiparticle (2-qp) states. Measurement of transition quadrupole moments and g-factors would be a strong test for our predictions.

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What this paper is about

The projected shell model is used to study the positive parity bands in $^{124}\mathrm{Ce}$. The energy spectra, transition quadrupole moments, and gyromagnetic factors are calculated. The calculation reproduces the observed positive parity bands. The peak in g-factors at spin $I=14$ is predicted due to proton alignment arising from the two quasiparticle (2-qp) band crossing. The wave functions of yrast states at $I=14$ to 20 are dominated by the two quasiparticle (2-qp) states. Measurement of transition quadrupole moments and g-factors would be a strong test for our predictions.

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Available abstract

The projected shell model is used to study the positive parity bands in $^{124}\mathrm{Ce}$. The energy spectra, transition quadrupole moments, and gyromagnetic factors are calculated. The calculation reproduces the observed positive parity bands. The peak in g-factors at spin $I=14$ is predicted due to proton alignment arising from the two quasiparticle (2-qp) band crossing. The wave functions of yrast states at $I=14$ to 20 are dominated by the two quasiparticle (2-qp) states. Measurement of transition quadrupole moments and g-factors would be a strong test for our predictions.

Key concepts: Yrast, Quasiparticle, Quadrupole, Physics, Atomic physics, Spectral line, Parity (physics), Spin (aerodynamics)

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