Possible candidate nuclei for chirality-parity quartet bands

Chen Liu; Shou-Yu Wang; Bin Qi; Hui Jia

doi:10.1088/1674-1137/42/7/074105

Chinese Physics C> 2018, Vol. 42> Issue(7) : 074105 DOI: 10.1088/1674-1137/42/7/074105

Possible candidate nuclei for chirality-parity quartet bands

1.
Shandong Provincial Key Laboratory of Optical Astronomy and Solar-Terrestrial Environment, Institute of Space Sciences, Shandong University, Weihai 264209, China

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Abstract：
The potential energy surfaces of the even-even ^68-92Se, ^112-150Ba, and ^208-230Ra isotopes are calculated using the macroscopic-microscopic method in a multidimensional space {α_λ,μ} including quadrupole (λ=2, μ=0, 2) and octupole (λ=3, μ=0, 1, 2, 3) degrees of freedom. The calculated results show that the even-even isotopes ⁹²Se, ^{112,114,144-150}Ba and ^220-228Ra can exhibit the coexistence of triaxial and octupole deformations, thereby leading to simultaneous chiral and reflected symmetry breaking. Therefore, chirality-parity quartet bands are expected in these and their neighboring odd-A/odd-odd nuclei.
- chiral doublet bands ,
- shape coexistence ,
- chirality-parity quartet bands ,
- macroscopic-microscopic method

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Chen Liu, Shou-Yu Wang, Bin Qi and Hui Jia. Possible candidate nuclei for chirality-parity quartet bands[J]. Chinese Physics C, 2018, 42(7): 074105. doi: 10.1088/1674-1137/42/7/074105

Chen Liu, Shou-Yu Wang, Bin Qi and Hui Jia. Possible candidate nuclei for chirality-parity quartet bands[J]. Chinese Physics C, 2018, 42(7): 074105. doi: 10.1088/1674-1137/42/7/074105 shu

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Supported by Natural Science Foundation of China (11705102, 11622540, 11675094), the Shandong Natural Science Foundation (ZR2017PA005, JQ201701), the China Postdoctoral Science Foundation (2017M612254), and the Young Scholars Program of Shandong University, Weihai (2015WHWLJH01)

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沈阳化工大学材料科学与工程学院沈阳 110142

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