Impact factor of Chinese Physics C is 3.6 in 2023 Impact factor of Chinese Physics C is 3.6 in 2022 2021 Impact Factor 2.944
Advanced Search
×
近期发现有不法分子冒充我刊与作者联系，借此进行欺诈等不法行为，请广大作者加以鉴别，如遇诈骗行为，请第一时间与我刊编辑部联系确认（《中国物理C》（英文）编辑部电话：010-88235947,010-88236950），并作报警处理。
本刊再次郑重声明：
（1）本刊官方网址为cpc.ihep.ac.cn和https://iopscience.iop.org/journal/1674-1137
（2）本刊采编系统作者中心是投稿的唯一路径，该系统为ScholarOne远程稿件采编系统，仅在本刊投稿网网址（https://mc03.manuscriptcentral.com/cpc）设有登录入口。本刊不接受其他方式的投稿，如打印稿投稿、E-mail信箱投稿等，若以此种方式接收投稿均为假冒。
（3）所有投稿均需经过严格的同行评议、编辑加工后方可发表，本刊不存在所谓的“编辑部内部征稿”。如果有人以“编辑部内部人员”名义帮助作者发稿，并收取发表费用，均为假冒。
                  
《中国物理C》（英文）编辑部
2024年10月30日
Chinese Physics C> 2000, Vol. 24> Issue(5) : 418-425 

Octupole Deformation in Neutron Rich 145,147 La Nuclei

  •  Department of Physics, Tsinghua University, Beijing, 100084, China2 Department of Physics, Vanderbilt University, Nashville, TN 37235, USA3 Department of Physics, Mississippi State University, MS 39762, USA4 Idaho National Engineering Laboratory, Idaho Falls, ID 83415, USA5 Lawrence Berkeley Laboratory, Berkeley, CA 94720, USA6 Joint Institute for Nuclear Research, Dubna 141980, Russia

  • The level schemes with high spin states in neutron-rich145,147La nuclei have been established from the study of prompt γ-rays emitted in the spontaneous fission of 252Cf. Many new levels and γ transitions have been idenfified. The highest spin states in both nuclei were expanded up to(41/2+)and (43/2－)respectively. The alternating parity band structures and strong E1 transitions between negative-and positive-parity bands show strong octupole deformation. The collective bands observed in 145La give evidence for co-existence and competition between symmetric and asymmetric shapes. From the systematic comparison with the neighboring isotones, the s=+i bands in both nuclei most probably originate from the single particle πh11/2 orbital coupling with the neighboring even-even cores, respectively. Band crossing of the πh11/2 bands was found aroundω≈0.26—0.30MeV and these backbends are related to the alignment of two i13/2 neutrons from cranked shell model calculations.
  • 加载中

  • References

    [1] Nazarewicz W. Olanders P. Ragnarsson I et al. Nucl. Phys，1984, A429:269[2] Nazarewiri W, Olanders P. Nucl. Phys，1985, A441:420[3] Leander G A, Nazarewicz W, Olanders P et al. Phys. Lett.，1985, 8152;284[4] 7H11 ShenqJiang. Trends in Nucl. Phys，1992, 9(2):8 (朱胜江.核物理动态,1992,9(2):8)[5] ZHU ShengJiang, Lee. 1 Y. High Energy Phys. and Nucl. Phys. (in Chinese),1993, 17:353 (朱胜江，Lee. 1. Y.高能物理与核物理,1993.17:353)[6] Hamilton J H, Rarrrayya A V, Zhu 5 J et al. Prog. Part. Nucl. Phys.，1995, 35:635[7] 13entaleb M, Schulz N, Lubkiewiu et al. Z. Phys.,1994, A348:245[8] Zhu S J, Hanulton J H, Ramayya A V et al. J. Phys,1997, G23:L77[9] Zhu S J，Wang M G, Hamiltcm J H et al. Chin. Phys. Lett.,1997. 14:569[10] Zhu S J, Lu Q H, Hamilton J H et al. Phys Lett.1995, 8357;273[11] ilrban W, Jones M A, Durell J L et al. Nucl. Phys..1997, A613:107[12] Jones M A, Urban W, Durell J L et al. Nucl. Phys..1996, A605:133[13] Phillips W R, Ahmad I, Emling H et al. Phys. Rev. Lett..1986, 57:3257[14] ZHC: LingYan. ZHU ShengJiang, LI Ming et al. High Energy Phys and Nucl.Phys. (in Chinese).1998, 22:885 (朱凌燕，朱胜江.李明等高能物理与核物理,1998.22:885)[15] Phillips W R, Janssetu R V F, Ahrnad 1 et al. Phys. Lett,198ti,B212:402[16] Pfeiffer 13 et al. Z. Phys..1978, A287:191[17] Mateosian E D, Peker L A. Nucl. Data Sheets, 1992, 66:712[18] WANG MuGe. Research on High Spin States in Neutron-Rich 145,147 La Nuclei,Thesis for Master Degree, Tsinqhua University, 1996, 6(王牧歌,丰中子核 145,147 La 高自旋嚎谕究.油华大学硕士学位论文.1996.6)[19] urban w, Phillips w R. Durell J L et al. Phys.Rev.,1997,C54;945[20] Arvaeineia R J , Cole J D. Greenwood R C et al. Phys Rev.,1993, 048:566

  • Access

    加载中

Get Citation
ZHU ShengJiang, WANG MuGe, ZHU LingYan, LI Ming, GAN CuiYun, YANG LiMing, M Sakhaee, Pau Sanli, DENG JingKang and LONG GuiLu. Octupole Deformation in Neutron Rich 145,147 La Nuclei[J]. Chinese Physics C, 2000, 24(5): 418-425.
ZHU ShengJiang, WANG MuGe, ZHU LingYan, LI Ming, GAN CuiYun, YANG LiMing, M Sakhaee, Pau Sanli, DENG JingKang and LONG GuiLu. Octupole Deformation in Neutron Rich 145,147 La Nuclei[J]. Chinese Physics C, 2000, 24(5): 418-425. shu
Milestone
Received: 1999-03-02
Revised: 1900-01-01
Article Metric

Article Views(1199)
PDF Downloads(667)
Cited by(0)
Policy on re-use
To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.
通讯作者: 陈斌, bchen63@163.com
  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

  1. 本站搜索
  2. 百度学术搜索
  3. 万方数据库搜索
  4. CNKI搜索

Email This Article

Title:
Email:

Octupole Deformation in Neutron Rich 145,147 La Nuclei

    Corresponding author: ZHU ShengJiang,
  • Department of Physics, Tsinghua University, Beijing, 100084, China2 Department of Physics, Vanderbilt University, Nashville, TN 37235, USA3 Department of Physics, Mississippi State University, MS 39762, USA4 Idaho National Engineering Laboratory, Idaho Falls, ID 83415, USA5 Lawrence Berkeley Laboratory, Berkeley, CA 94720, USA6 Joint Institute for Nuclear Research, Dubna 141980, Russia
  • Received Date: 1999-03-02
  • Accepted Date: 1900-01-01
  • Available Online: 2000-04-05

Abstract: The level schemes with high spin states in neutron-rich145,147La nuclei have been established from the study of prompt γ-rays emitted in the spontaneous fission of 252Cf. Many new levels and γ transitions have been idenfified. The highest spin states in both nuclei were expanded up to(41/2+)and (43/2－)respectively. The alternating parity band structures and strong E1 transitions between negative-and positive-parity bands show strong octupole deformation. The collective bands observed in 145La give evidence for co-existence and competition between symmetric and asymmetric shapes. From the systematic comparison with the neighboring isotones, the s=+i bands in both nuclei most probably originate from the single particle πh11/2 orbital coupling with the neighboring even-even cores, respectively. Band crossing of the πh11/2 bands was found aroundω≈0.26—0.30MeV and these backbends are related to the alignment of two i13/2 neutrons from cranked shell model calculations.

    HTML

Reference (1)

目录

Link
IOPScience
SCOAP3
arXiv
Chinese Physical Society
Journal information
Introduction
Editorial Board
Others
Subscribe
Contact us
QQ: 1307685413
Tel: +86-010-88235947
Fax: +86-010-88233126
E-mail: cpc@ihep.ac.cn

  • CPC Website

  • IOP Website

  • CPC WeChat

Copyright © Institute of High Energy Physics, Chinese Academy of Sciences, 19B Yuquan Road, Beijing 100049, China 京ICP备05002789号-1

Supported by: Beijing Renhe Information Technology Co. Ltd  E-mail: info@rhhz.net

/

DownLoad:  Full-Size Img  PowerPoint
Return
Return