Influence of Valence Nucleon on Shape Change in <SUP>131</SUP>Ce and <SUP>131</SUP>Pr

LI Guang-Sheng; MENG Rui; ZHU Li-Hua; ZHANG Zhen-Long; WU Xiao-Guang; WANG Yue; WANG Zhi-Min; WEN Shu-Xian; LU Jing-Bin; ZHAO Guang-Yi; LI Xian-Feng; WEN Li-Jun; ZHEN Y

Chinese Physics C> 2005, Vol. 29> Issue(3) : 240-244

Influence of Valence Nucleon on Shape Change in ¹³¹Ce and ¹³¹Pr

China Institute of Atomic Energy,Beijing 102413,China2 Department of Physics,Jilin University,Changchun,130023,China

Abstract
HTML
Reference
Related

PDF

Abstract：
The 95 MeV ¹⁹F beam projects on an enriched 116Sn target with backing.The γ-ray emitted from evaporation-residual nuclei were detected in γ-γ coincidence measurement by using 11 BGO Compton suppressed HPGe detectors. Lifetimes of the high spin states for ¹³¹Ce and ¹³¹Pr were determined through analysis of the Doppler broadened line shapes. The transition quadrupole moments extracted from the measured lifetimes demonstrate that change in nuclear shape occurs at band crossing region. From a comparison with the neighbouring even-even nucleus ¹³⁰Ce it follows that influence of the valence neutron is stronger than that of the valence proton on shape change of the core.

References

[1]

. berg S. Phys. Scr. , 1982, 25: 23-272. LI Guang-Sheng, YANG Li-Ming, DAI Zheng-Yu et al. HEP NP,2002, 26( 8) : 809-813 (in Chinese)(李广生,杨利明,戴征宇等,高能物理与核物理,2002, 26(8):809-813 )3. Blaugrund A E. Nucl . Phys. , 1966, 88: 5014. LI G S, DAI Z Y, WEN S X et al . Z. Phys. , 1996, A356 ( 2) :119-1235. LI Guang-Sheng, DAI Zheng-Yu, LIU Xiang-An et al. Chin. Phys.Lett . , 1998, 15(8) : 564- 565

[1]	Ziaur Rahman , Sikander M , Waheed Arshed , Nasir M , Waheed Ahmed . Influence of thyroid volume reduction on absorbed dose in ¹³¹I therapy studied by using Geant4 Monte Carlo simulation. Chinese Physics C, 2014, 38(5): 056201. doi: 10.1088/1674-1137/38/5/056201
[2]	Ziaur Rahman , Shakeel ur , Waheed Arshed , Nasir M , Abdul Rashid , Jahan Zeb . Absorbed dose estimations of ¹³¹I for critical organs using the GEANT4 Monte Carlo simulation code. Chinese Physics C, 2012, 36(11): 1150-1156. doi: 10.1088/1674-1137/36/11/021
[3]	FU Zai-Wei , HENG Yue-Kun , QI Ming , HUANG Pin-Wen , ZHANG Huai-Jin , WANG Ji-Yang , JIA Ru , QIAN Sen , LI Shao-Li , CHEN Xiao-Hui , NING Zhe . Scintillating properties of LiYSiO₄:Ce. Chinese Physics C, 2011, 35(12): 1134-1138. doi: 10.1088/1674-1137/35/12/010
[4]	LIU Ying , WU Xiao-Guang , ZHU Li-Hua , LI Guang-Sheng , HE Chuang-Ye , LI Xue-Qin , PAN Bo , HAO Xin , LI Li-Hua , WANG Zhi-Min , LI Zhong-Yu , XU Qiang . Signature splitting in ¹²⁹Ce. Chinese Physics C, 2009, 33(S1): 212-214. doi: 10.1088/1674-1137/33/S1/068
[5]	DONG Bao-Guo , GUO Hong-Chao , MA Hai-Liang , YAN Yu-Liang . Description of all observed rotational bands in ¹²⁸Pr. Chinese Physics C, 2009, 33(S1): 58-60. doi: 10.1088/1674-1137/33/S1/019
[6]	WANG Da-Wei , HUANG Shi-Hua , YOU Fang-Tian , TAO Ye . Scintillation properties of YPO₄: RE (RE=Ce³⁺, Pr³⁺ or Nd³⁺). Chinese Physics C, 2009, 33(11): 1019-1022. doi: 10.1088/1674-1137/33/11/018
[7]	LIU Ying , WU Xiao-Guang , ZHU Li-Hua , LI Guang-Sheng , HE Chuang-Ye , LI Xue-Qin , PAN Bo , HAO Xin , LI Li-Hua , WANG Zhi-Min , LI Zhong-Yu , XU Qiang , WANG Jian-Guo , DING Huai-Bo , ZHAI Jian . Triaxial shape in ¹²⁹Ce. Chinese Physics C, 2008, 32(S2): 141-142.
[8]	LIU Hong-Liang , XU Fu-Rong . Shape of the K^π=7^－ Isomer in ¹³⁰Ce. Chinese Physics C, 2006, 30(S2): 100-102.
[9]	ZHU Sheng-Jiang , GAN Cui-Yun , ZHU Ling-Yan , YANG Li-Ming , LONG Gui-Lu , WUN Shu-Xian , WU Xiao-Guang , LI Guang-Sheng , ZHU Li-Hua , . High Spin States and Shape Coexistence in ¹³⁴Ce. Chinese Physics C, 2005, 29(2): 130-138.
[10]	YU Hai-Ping , GUO Ying-Xiang , LEI Xiang-Guo , ZHANG Yu-Hu , ZHOU Xiao-Hong , LUO Peng , LIU Min-Liang , SONG Li-Tao , WANG Hua-Lei , XIE Cheng-Ying , ZHENG Yong , GUO Wen-Tao , , . High-Spin Level Scheme of Odd-Odd ¹⁴⁰Pr Nucleus. Chinese Physics C, 2004, 28(8): 806-809.
[11]	LIANG Hong-Bin , ZHANG Jian-Hui , CHU Ben-Li , LIANG Li-Fang , SU Qiang , TAO Ye , XU Jian-Hua , HUANG Yan . The VUV spectrum of SrBPO₅:Ce³⁺. Chinese Physics C, 2003, 27(S1): 28-31.
[12]	LI Guang-Sheng , YANG Li-Ming , DAI Zheng-Yu , LIU Xiang-An , ZHANG Lan-Kuan , WEN Shu-Xian , WU Xiao-Guang , YUAN Guan-Jun , WENG Pei-Kun , LI Sheng-Gang , ZHU Sheng-Jiang , YANG Chun-Xiang , . Electromagnetic Transition Rates and Deformation Feature in ¹³⁰Ce. Chinese Physics C, 2002, 26(8): 809-813.
[13]	DONG Bao-Guo , GUO Hong-Chao , Ingemar Ragnarsson . Shape Coexistence and Band Termination in ¹³¹La. Chinese Physics C, 2002, 26(3): 266-272.
[14]	XIE Yuan-Xiang , XU Shu-Wei , LI Zhan-Kui , ZHANG Tian-Mei , MA Rui-Chang , GUO Ying-Xiang , GE Yuan-Xiu , WANG Chun-Fang , XING Jian-Ping . (EC/β⁺) Decay of Neutron Deficient Nuclide ¹²⁹Ce. Chinese Physics C, 2001, 25(3): 198-204.
[15]	Kurash Ibrahim , WU Zi-Yu , QIAN Hai-Jie , LIU Feng-Qin , XIAN Ding-Chang . Valence Band Photoelectron Investigation of Pr_1-xSr_xMnO₃ System. Chinese Physics C, 2001, 25(S1): 28-32.
[16]	LI Guang-Sheng , DAI Zheng-Yu , LIU Xiang-An , ZHANG Lan-Kuan , WEN Shu-Xian , WU Xiao-Guang , YUAN Guan-Jun , PENG Chao-Hua , WENG Pei-Kun , LI Sheng-Gang , YANG Chun-Xiang . Shape Change of ¹²⁹Ce at High Spin States. Chinese Physics C, 2001, 25(10): 984-988.
[17]	XIE YuanXiang , XU ShuWei , Li ZhanKui , YU Yong , PAN QiangYan , WANG ChunFang , ZHANG TianMei , LONG GuiLu , LI YanSong . (EC+β⁺) Decay of ¹³⁰Pm and ¹²⁸Pr. Chinese Physics C, 2000, 24(8): 719-724.
[18]	Gan Zaiguo , Guo Junsheng , Shi LIjun , Liu HOngye , Qin Zhi , Guo Tianrui , Lei Ziangguo , Ma Ruichang , Huang Wenxue , Yuan Shuanggui , Zhang Xueqian , Jin Genming . First Observation of ¹³¹Pm Decay. Chinese Physics C, 1998, 22(8): 673-677.
[19]	Xu Zizong , Gong Zhufang , Chang Jin , Shi Chaoshu , Shen Dingzhong , Yuan Xianglong , Yin Zhiwen . Fluorescence Properties of Ce³⁺-Doped BaF₂. Chinese Physics C, 1993, 17(S1): 9-16.
[20]	WANG BAO-AN , FENG JIA-ZHEN , LIU ZHAO-YUAN , YANG HUA-ZHONG , YAO LI-SHAN . THE MECHANISM OF THE REACTION ¹⁴¹pr(n,α)¹³⁸La AT En=14 MeV. Chinese Physics C, 1981, 5(5): 636-640.

Access

Get Citation

LI Guang-Sheng, MENG Rui, ZHU Li-Hua, ZHANG Zhen-Long, WU Xiao-Guang, WANG Yue, WANG Zhi-Min, WEN Shu-Xian, LU Jing-Bin, ZHAO Guang-Yi, LI Xian-Feng, WEN Li-Jun, ZHEN Y, Influence of Valence Nucleon on Shape Change in ¹³¹Ce and ¹³¹Pr[J]. Chinese Physics C, 2005, 29(3): 240-244.

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2004-08-25
Revised: 1900-01-01

Article Metric

Article Views(3027)
PDF Downloads(557)
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

Influence of Valence Nucleon on Shape Change in ¹³¹Ce and ¹³¹Pr

Corresponding author: LI Guang-Sheng,

China Institute of Atomic Energy,Beijing 102413,China2 Department of Physics,Jilin University,Changchun,130023,China

Received Date: 2004-08-25

Accepted Date: 1900-01-01

Available Online: 2005-03-05

Abstract: The 95 MeV ¹⁹F beam projects on an enriched 116Sn target with backing.The γ-ray emitted from evaporation-residual nuclei were detected in γ-γ coincidence measurement by using 11 BGO Compton suppressed HPGe detectors. Lifetimes of the high spin states for ¹³¹Ce and ¹³¹Pr were determined through analysis of the Doppler broadened line shapes. The transition quadrupole moments extracted from the measured lifetimes demonstrate that change in nuclear shape occurs at band crossing region. From a comparison with the neighbouring even-even nucleus ¹³⁰Ce it follows that influence of the valence neutron is stronger than that of the valence proton on shape change of the core.

HTML

Reference (1)

Influence of Valence Nucleon on Shape Change in ¹³¹Ce and ¹³¹Pr

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article

Influence of Valence Nucleon on Shape Change in ¹³¹Ce and ¹³¹Pr

Corresponding author: LI Guang-Sheng,

HTML

目录

Influence of Valence Nucleon on Shape Change in 131Ce and 131Pr

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article

Influence of Valence Nucleon on Shape Change in 131Ce and 131Pr

Corresponding author: LI Guang-Sheng,

HTML

目录

Influence of Valence Nucleon on Shape Change in ¹³¹Ce and ¹³¹Pr

Influence of Valence Nucleon on Shape Change in ¹³¹Ce and ¹³¹Pr