Shape transition with temperature of the pear-shaped nuclei in covariant density functional theory

doi:10.1103/PhysRevC.96.054308

NTSC-IR

	Shape transition with temperature of the pear-shaped nuclei in covariant density functional theory
	Zhang, W.1,2,3; Niu, Y. F.4
	2017-11-10
发表期刊	PHYSICAL REVIEW C
ISSN	2469-9985
卷号	96 期号:5 页码:8
摘要	The shape evolutions of the pear-shaped nuclei Ra-224 and even-even Ba144-154 with temperature are investigated by the finite-temperature relativistic mean field theory with the treatment of pairing correlations by the BCS approach. The free energy surfaces as well as the bulk properties including deformations, pairing gaps, excitation energy, and specific heat for the global minimum are studied. For Ra-224, three discontinuities found in the specific heat curve indicate the pairing transition at temperature 0.4 MeV and two shape transitions at temperatures 0.9 and 1.0 MeV, namely one from quadrupole-octupole deformed to quadrupole deformed, and the other from quadrupole deformed to spherical. Furthermore, the gaps at N = 136 and Z = 88 are responsible for stabilizing the octupole-deformed global minimum at low temperatures. Similar pairing transition at T similar to 0.5 MeV and shape transitions at T = 0.5-2.2MeV are found for even-even Ba144-154. The transition temperatures are roughly proportional to the corresponding deformations at the ground states.
资助者	National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Scholarship Council ; China Scholarship Council ; Open Fund of Key Laboratory of Time and Frequency Primary Standards, Chinese Academy of Sciences ; Open Fund of Key Laboratory of Time and Frequency Primary Standards, Chinese Academy of Sciences ; Office of Science, Office of Basic Energy Sciences of the U.S. Department of Energy ; Office of Science, Office of Basic Energy Sciences of the U.S. Department of Energy ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Scholarship Council ; China Scholarship Council ; Open Fund of Key Laboratory of Time and Frequency Primary Standards, Chinese Academy of Sciences ; Open Fund of Key Laboratory of Time and Frequency Primary Standards, Chinese Academy of Sciences ; Office of Science, Office of Basic Energy Sciences of the U.S. Department of Energy ; Office of Science, Office of Basic Energy Sciences of the U.S. Department of Energy ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Scholarship Council ; China Scholarship Council ; Open Fund of Key Laboratory of Time and Frequency Primary Standards, Chinese Academy of Sciences ; Open Fund of Key Laboratory of Time and Frequency Primary Standards, Chinese Academy of Sciences ; Office of Science, Office of Basic Energy Sciences of the U.S. Department of Energy ; Office of Science, Office of Basic Energy Sciences of the U.S. Department of Energy ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Scholarship Council ; China Scholarship Council ; Open Fund of Key Laboratory of Time and Frequency Primary Standards, Chinese Academy of Sciences ; Open Fund of Key Laboratory of Time and Frequency Primary Standards, Chinese Academy of Sciences ; Office of Science, Office of Basic Energy Sciences of the U.S. Department of Energy ; Office of Science, Office of Basic Energy Sciences of the U.S. Department of Energy
DOI	10.1103/PhysRevC.96.054308
关键词[WOS]	SELF-CONSISTENT CALCULATIONS ; HARTREE-BOGOLIUBOV THEORY ; FINITE-TEMPERATURE ; ATOMIC-NUCLEI ; HOT NUCLEI ; MODEL ; APPROXIMATION ; EXCITATION
语种	英语
资助项目	National Natural Science Foundation of China[11105042] ; National Natural Science Foundation of China[11305161] ; National Natural Science Foundation of China[11505157] ; China Scholarship Council ; Open Fund of Key Laboratory of Time and Frequency Primary Standards, Chinese Academy of Sciences ; Office of Science, Office of Basic Energy Sciences of the U.S. Department of Energy[DE-AC02-05CH11231]
资助者	National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Scholarship Council ; China Scholarship Council ; Open Fund of Key Laboratory of Time and Frequency Primary Standards, Chinese Academy of Sciences ; Open Fund of Key Laboratory of Time and Frequency Primary Standards, Chinese Academy of Sciences ; Office of Science, Office of Basic Energy Sciences of the U.S. Department of Energy ; Office of Science, Office of Basic Energy Sciences of the U.S. Department of Energy ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Scholarship Council ; China Scholarship Council ; Open Fund of Key Laboratory of Time and Frequency Primary Standards, Chinese Academy of Sciences ; Open Fund of Key Laboratory of Time and Frequency Primary Standards, Chinese Academy of Sciences ; Office of Science, Office of Basic Energy Sciences of the U.S. Department of Energy ; Office of Science, Office of Basic Energy Sciences of the U.S. Department of Energy ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Scholarship Council ; China Scholarship Council ; Open Fund of Key Laboratory of Time and Frequency Primary Standards, Chinese Academy of Sciences ; Open Fund of Key Laboratory of Time and Frequency Primary Standards, Chinese Academy of Sciences ; Office of Science, Office of Basic Energy Sciences of the U.S. Department of Energy ; Office of Science, Office of Basic Energy Sciences of the U.S. Department of Energy ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Scholarship Council ; China Scholarship Council ; Open Fund of Key Laboratory of Time and Frequency Primary Standards, Chinese Academy of Sciences ; Open Fund of Key Laboratory of Time and Frequency Primary Standards, Chinese Academy of Sciences ; Office of Science, Office of Basic Energy Sciences of the U.S. Department of Energy ; Office of Science, Office of Basic Energy Sciences of the U.S. Department of Energy
WOS研究方向	Physics
WOS类目	Physics, Nuclear
WOS记录号	WOS:000414848000001
出版者	AMER PHYSICAL SOC
引用统计
文献类型	期刊论文
条目标识符	http://210.72.145.45/handle/361003/11454
专题	中国科学院国家授时中心
通讯作者	Niu, Y. F.
作者单位	1.Zhengzhou Univ, Henan Key Lab Ion Beam Bioengn, Zhengzhou 450052, Henan, Peoples R China 2.Chinese Acad Sci, Natl Time Serv Ctr, Key Lab Precis Nav & Technol, Xian 710600, Shaanxi, Peoples R China 3.Lawrence Berkeley Natl Lab, Mol Foundry, Berkeley, CA 94720 USA 4.Horia Hulubei Natl Inst Phys & Nucl Engn, ELI NP, 30 Reactorului St, RO-077125 Bucharest, Romania
推荐引用方式 GB/T 7714	Zhang, W.,Niu, Y. F.. Shape transition with temperature of the pear-shaped nuclei in covariant density functional theory[J]. PHYSICAL REVIEW C,2017,96(5):8.
APA	Zhang, W.,&Niu, Y. F..(2017).Shape transition with temperature of the pear-shaped nuclei in covariant density functional theory.PHYSICAL REVIEW C,96(5),8.
MLA	Zhang, W.,et al."Shape transition with temperature of the pear-shaped nuclei in covariant density functional theory".PHYSICAL REVIEW C 96.5(2017):8.