Further Identification of the Decay of <SUP>129</SUP>Pm Near the Proton Drip Line

XU Shu-Wei; XIE Yuan-Xiang; XU Fu-Rong; LI Zhan-Kui; WANG Xu-Dong; XING Ye-Bing

Chinese Physics C> 2005, Vol. 29> Issue(3) : 237-239

Further Identification of the Decay of ¹²⁹Pm Near the Proton Drip Line

Institute of Modern Physics,CAS,Lanzhou 730000,China2 Department of Technical Physics,Peking University,Beijing 100871,China

Abstract
HTML
Reference
Related

PDF

Abstract：
It was reported in our previous paper in 2004 that the unknown isotope ¹²⁹Pm near the proton drip line was produced via the fusion-evaporation reaction ^40Ca+92Mo, and a 99-keV γ line was assigned to the (EC+b+) decay of ¹²⁹Pm for the first time.In order to confirm the assignment,following three new evidences were provided in this paper. (1) The excitation function of the 99-keV γ line was made from 164MeV to 190Mev of the incident energy. (2) A cross bombardment ³⁶Ar+⁹⁶Ru was carried out, from which the same 99-keV γ transition was observed.(3) The nuclear potential-energy-surface (PES) of ¹²⁹Pm was calculated by using the Woods-Saxon Strutinsky method. The ground spin and parity of ¹²⁹Pm was then predicted to be 5/2^－. This prediction leads to a 5/2^－ low-lying state in the daughter nucleus ¹²⁹Nd via the (EC+b+) decay of ¹²⁹Pm favorably.

References

[1]

. 　XU S W, XIE Y X, LI Z K et al . High Energy Phys. and Nucl .Phys. , 2004 , 28 : 158 —160 (in Chinese)(徐树威,谢元祥,李占奎等,高能物理与核物理,2004 , 28 (2) :158 —160)2.　Zeidan O , Hartley D J , Riedinger L L et al . Phys. Rev. , 2002 , C65 :0243033.　XIE YX, XU SW, LI Z Ket al . Eur. Phys. J . , 1999 , A5 :341 —3454.　Nazarewicz W, Dudek J , Bengtsson R et al . Nucl . Phys. ,1985 , A435 :397 —4305.　Mê ller P , Nix J R , Kratz KL. At . Data Nucl . Data Tables , 1997 , 66 :131 —343

[1]	Fan Ying , REN Zhong-Zhou . Theoretical Studies on Electron Scattering of S and Si Isotopes. Chinese Physics C, 2006, 30(10): 983-987.
[2]	XU Shu-Wei , LI Zhan-Kui , XIE Yuan-Xiang , GUO Wen-Tao . β-Delayed Proton Decays in the Rare-Earth Region Near Drip Line. Chinese Physics C, 2006, 30(S2): 131-135.
[3]	ZHU Sheng-Jiang , ZHANG Zheng , XIAO Shu-Dong , CHE Xing-Lai , U Yong-Nan , LI Ming-Liang , ZHENG Ran-Cheng . Further Research on Level Structures of Neutron-Rich Odd-A Ru Nuclei. Chinese Physics C, 2005, 29(1): 23-27.
[4]	XU Shu-Wei , LI Zhang-Kui , XIE Yuan-Xiang , HUANG Wen-Xue , SHU Neng-Chuan , CHEN Yong-Shou , XU Fu-Rong , WANG Kun . β-Delayed Proton Decays Near the Proton Drip Line. Chinese Physics C, 2004, 28(S1): 1-4.
[5]	LIU Min-Liang , ZHANG Yu-Hu , ZHOU Xiao-Hong , GUO Ying-Xiang , LIU Zhong , LEI Xiang-Guo , HE Jian-Jun , ZHENG Yong , ZHU Li-Hua , WEN Shu-Xian . Empirical Shell Model and High-Spin Level Structure of Near-spherical Nucleus ¹⁴²Pm. Chinese Physics C, 2004, 28(S1): 62-65.
[6]	XU Shu-Wei , XIE Yuan-Xiang , LI Zhan-Kui , WANG Xu-Dong . New Nuclide ¹²⁹Pm Near the Proton Drip Line. Chinese Physics C, 2004, 28(2): 158-160.
[7]	DU Dong-Sheng , YANG De-Shan , ZHU Guo-Huai . Further Analysis of Di-gluon Fusion Mechanismfor the Decays of B→Kη′. Chinese Physics C, 2002, 26(1): 1-7.
[8]	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.
[9]	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.
[10]	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.
[11]	DIV align , Zhang Yuhu . Study of High Spin Isomer and its Decay Level Scheme of Doubly Odd ¹⁴⁴Pm Nucleus. Chinese Physics C, 1996, 20(5): 385-393.
[12]	Xu Xiaoji , Ma Ruichang , Huang Wenxue , Hu Zhiqiang , Guo Junsheng , Guo Yingxiang , Xu Lianlian , Liu Hongye , Luo Yixiao , Wang Shuhong , Kong Dengming , Qiao Jimin . First Observation of β-delayed Proton Decay of the Proton Drip Line Nuclide ¹⁹Na. Chinese Physics C, 1995, 19(3): 203-208.
[13]	Chen Jianhua , Kuang Huisun , Bai Mingfu , Cheng Xiangai . Further Classification of JT Coupled States for Nucleons by Casimir Operator of R(5) Group. Chinese Physics C, 1995, 19(5): 424-430.
[14]	Huang Liangxin , Li Hong , Chen Tianlun . Further Study on SU(2)×SU(2) Lattice Chiral Model. Chinese Physics C, 1995, 19(3): 245-250.
[15]	Ren Zhongzhou . Further Studies on Halo Nuclei ¹¹Li,¹⁴Be and ¹⁷B. Chinese Physics C, 1995, 19(6): 562-566.
[16]	Mao Huishun , Shi Huanzhang , Liu Nianzong , Zhang Zhuxiang , Zhang Caidi , Zheng Linsheng , Zhou Yongshen , Hu Lidong , Zhao Xiaojian , Zhong Xuechu , Tan Yiping , Han Shiwen . Further Study of Radiation Damage of Tile/Fiber Scintillator Calorimeter. Chinese Physics C, 1994, 18(10): 870-878.
[17]	ZHAO Xuan , ZENG Fan-An , LING You-Guang . A FURTHER STUDY OF QUASI RESONATING GROUP METHOD—— ANALYSIS OF p+⁶Li ELASTIC SCATTERING. Chinese Physics C, 1990, 14(1): 85-91.
[18]	WANG Zheng-Da . A FURTHER EXPLORATION FOR MECHANISM OF ANGULAR MOMENTUM TRANSFER IN HEAVY ION REACTION. Chinese Physics C, 1984, 8(5): 596-601.
[19]	WANG KE-LIN , BAO XI-MING , LIU ZU-WEI , CHEN LIN . THE FURTHER DISCUSSION OF GAUGE HIERARCHY. Chinese Physics C, 1981, 5(6): 744-750.
[20]	GAO LUN . FURTHER DISCUSSION ON THE EQUATION AND ITS SOLUTIONS FOR THE BOUND STATES OF MESONS. Chinese Physics C, 1978, 2(3): 211-224.

Access

Get Citation

XU Shu-Wei, XIE Yuan-Xiang, XU Fu-Rong, LI Zhan-Kui, WANG Xu-Dong and XING Ye-Bing. Further Identification of the Decay of ¹²⁹Pm Near the Proton Drip Line[J]. Chinese Physics C, 2005, 29(3): 237-239.

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2004-07-09
Revised: 1900-01-01

Article Metric

Article Views(3182)
PDF Downloads(694)
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

Further Identification of the Decay of ¹²⁹Pm Near the Proton Drip Line

Corresponding author: XU Shu-Wei,

Institute of Modern Physics,CAS,Lanzhou 730000,China2 Department of Technical Physics,Peking University,Beijing 100871,China

Received Date: 2004-07-09

Accepted Date: 1900-01-01

Available Online: 2005-03-05

Abstract: It was reported in our previous paper in 2004 that the unknown isotope ¹²⁹Pm near the proton drip line was produced via the fusion-evaporation reaction ^40Ca+92Mo, and a 99-keV γ line was assigned to the (EC+b+) decay of ¹²⁹Pm for the first time.In order to confirm the assignment,following three new evidences were provided in this paper. (1) The excitation function of the 99-keV γ line was made from 164MeV to 190Mev of the incident energy. (2) A cross bombardment ³⁶Ar+⁹⁶Ru was carried out, from which the same 99-keV γ transition was observed.(3) The nuclear potential-energy-surface (PES) of ¹²⁹Pm was calculated by using the Woods-Saxon Strutinsky method. The ground spin and parity of ¹²⁹Pm was then predicted to be 5/2^－. This prediction leads to a 5/2^－ low-lying state in the daughter nucleus ¹²⁹Nd via the (EC+b+) decay of ¹²⁹Pm favorably.

HTML

Reference (1)

Further Identification of the Decay of ¹²⁹Pm Near the Proton Drip Line

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article

Further Identification of the Decay of ¹²⁹Pm Near the Proton Drip Line

Corresponding author: XU Shu-Wei,

HTML

目录

Further Identification of the Decay of 129Pm Near the Proton Drip Line

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article

Further Identification of the Decay of 129Pm Near the Proton Drip Line

Corresponding author: XU Shu-Wei,

HTML

目录

Further Identification of the Decay of ¹²⁹Pm Near the Proton Drip Line

Further Identification of the Decay of ¹²⁹Pm Near the Proton Drip Line