Shape phase transition in the odd Sm nuclei: effective order parameter and odd-even effect

Abstract

Some binding-energy-related quantities serving as effective order parameters have been used to analyze the shape phase transition in the odd Sm nuclei. It is found that the signals of phase transition in the odd Sm nuclei are greatly enhanced in contrast to the even Sm nuclei. A further analysis shows that the transitional behaviors related to pairing in the Sm nuclei can be well described by the mean field plus pairing interaction model, with a monotonic decrease in the pairing strength $G$.

References in corpus (4)

• Quantum phase transitions in the interacting boson model
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• Effect of a fermion on quantum phase transitions in bosonic systems
• Rotation-driven prolate-to-oblate shape phase transition in 190W: A projected shell model study

Cited by in corpus (1)

• Empirical signatures of shape phase transitions in nuclei with odd nucleon numbers