High-K isomer and the rotational properties in the odd-Z neutron-rich nucleus M¹⁶³Eu *

Abstract

The newly observed isomer and ground-state band in the odd-Z neutron-rich rare-earth nucleus 163 Eu are investigated by using the cranked shell model (CSM) with pairing treated by the particlenumber conserving (PNC) method. This is the first time detailed theoretical investigations are performed of the observed 964(1) keV isomer and ground-state rotational band in 163 Eu. The experimental data are reproduced very well by the theoretical results. The configuration of the 964(1) keV isomer is assigned as the three-particle state 13 2 − (ν 7 2 + [633]⊗ν 1 2 − [521]⊗π 5 2 + [413]). Morelow-lying multi-particle states are predicted in 163 Eu. Due to its significant effect on the nuclear mean field, the high-order ε 6 deformation plays an important role in the energy and configuration assignment of the multi-particle states. Compared to its neighboring even-even nuclei 162 Sm and 164 Gd, there is a 10% ∼ 15% increase of J (1) of the one-particle ground-state band in 163 Eu. This is explained by the pairing reduction due to the blocking of the nucleon on the proton π 5 2 + [413] orbital in 163 Eu. * hext@nuaa.edu.cn 1 arXiv:1906.06473v1 [nucl-th]

AeMg6Ga6S16 (Ae = Ca, Sr, Ba): The First Double Alkaline‐Earth Metal Chalcogenides with Excellent Performances

“…As it was known, the virtual electron (VE) progresses of occupied and unoccupied states were the main contribution to the overall SHG effect. [ 44 ]…”

“…As it was known, the virtual electron (VE) progresses of occupied and unoccupied states were the main contribution to the overall SHG effect. [44] CCDC: 2194173-2194175 contain the supplementary crystallographic data for this paper. These data can be obtained free of charge from The Cambridge Crystallographic Data Centre via www.ccdc.cam.ac.uk/ data_request/cif.…”

Discharge and jet characteristics of gliding arc plasma igniter driven by pressure difference

“…The gliding arc is in the B-G mode, and the voltage and current waveforms are shown in figure 12(b). From the voltage and current waveforms, it is found that the characteristics of the B-G mode are the alternating positive and negative breakdowns caused by the periodic phase change of the AC power supply [42]. At the moment of breakdown, the current has an ampere-level pulse peak, which can reach a maximum of 7.5 A.…”

Microscopic study of higher-order deformation effects on the ground states of superheavy nuclei around 270Hs *

“…In 1991, Patyk and Sobiczewski investigated the ground state properties of the heaviest even-even nuclei with proton numbers -114 and neutron numbers -168 using the MMM and found that the degree of freedom is important for binding energies and the formation of deformed shells [23,28]. Additionally, has a considerable influence on the moments of inertia [29,30] and high-K isomers [31,32]. The microscopic description of the structure of SHN can be achieved using density functional theories, with few studies investigating the influence of on the binding energy and shell structure of SHN to date.…”