Effects of proton angular momentum alignment on the two-shears-like mechanism in ${}^{101}$Pd

Abstract

The recently observed possible antimagnetic rotation band in ${}^{101}$Pd is investigated by the cranked shell model with pairing correlations treated by a particle-number conserving method, in which the blocking effects are taken into account exactly. The experimental moments of inertia and reduced $B(E2)$ transition probabilities and their variations with the rotational frequency $\omega$ are well reproduced. By analyzing the $\omega$-dependence of the occupation probability of each cranked Nilsson orbital near the Fermi surface and the contributions of valence orbitals in each major shell to the total angular momentum alignment, the upbending mechanism of $\nu h_{11/2}$ in ${}^{101}$Pd is understood clearly. The proton angular momentum alignment and its influence on the two-shears-like mechanism are also discussed.

8 pages, 8 figures, to be appear in Physical Review C. arXiv admin note: substantial text overlap with arXiv:1303.3346

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• Progress on tilted axis cranking covariant density functional theory for nuclear magnetic and antimagnetic rotation
• Novel structure for magnetic rotation bands in 60Ni
• Rod-shaped Nuclei at Extreme Spin and Isospin
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Cited by in corpus (2)

• Theoretical investigation of the antimagnetic rotation in ${}^{104}$Pd
• Possible antimagnetic rotation bands in ${}^{100}$Pd: a particle-number conserving investigation