“Stapler” mechanism for a dipole band in 
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Li, C. G.; Chen, Q. B.; Zhang, S. Q.; Xu, Cheng; Hua, H.; Wang, S. Y.; Bark, R. A.; Wyngaardt, S.; Shi, Z.; Dai, A. C.; Wang, C. G.; Li, X. Q.; Li, Z. H.; Meng, J.; Xu, F. R.; Ye, Y. L.; Jiang, D. X.; Han, R.; Niu, C. Y.; Chen, Z. Q.; Wu, H. Y.; Wang, X.; Luo, D. W.; Wu, C. G.; Wang, S.; Sun, D. P.; Liu, C.; Li, Z. Q.; Sun, B. H.; Jones, P.; Msebi, L.; Sharpey‐Schafer, J. F.; Dinoko, T. S.; Lawrie, E. A.; Ntshangase, S. S.; Kheswa, B. V.; Shirinda, O.; Khumalo, N. A.; Bucher, T. D.; Malatji, K. L.

doi:10.1103/physrevc.100.044318

Cited by 6 publications

(1 citation statement)

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“…Seemingly, such structure is similar to that of magnetic rotational band arising from shears mechanism. In order to examine this conjecture, the proton and neutron angular momentum vectors J π and J ν as well as the total angular momentum vector J tot = J π + J ν for the negativeparity band 2 at both the minimum and the maximum rotational frequencies are calculated similarly as in reference [76,77,83], and shown in figure 5. The proton and neutron angular momenta J π and J ν are defined as…”

Section: Discussionmentioning

confidence: 99%

Possible ‘stapler’ band in ¹⁰⁹Ag nucleus

Ma¹,

Lu²,

Li³

et al. 2020

J. Phys. G: Nucl. Part. Phys.

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High-spin states of 109Ag have been studied using the 7Li + 110Pd reaction at a beam energy of 46 MeV. A negative-parity band decaying to the ground-state band by several new linking transitions is established. Meanwhile, seven new E2 crossover transitions of this band are observed, thereby confirming the spin-parity assignment and ordering of the dipole transitions above the Iπ = 19/2− level. A low energy γ-ray transition of 88 keV is found and placed at the bottom of the negative-parity band, and thus the Iπ = 17/2− level is tentatively assigned as the lowest observed state of this band. Experimental excitation energies and total angular momenta of the negative-parity band are compared with the predictions of self-consistent titled axis cranking relativistic mean-field theory with a three-quasiparticle configuration of . Based on the theoretical description and the analyses of the angular momentum coupling, this negative-parity dipole band is suggested as a ‘stapler’ band. By investigating the angular momentum components, it is found that the valence nucleons in the low-j orbitals play an active role in the ‘stapler’ mechanism.

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Section: Discussionmentioning

confidence: 99%