A New Level Scheme of <SUP>127</SUP>I

ZHANG Yu-Hu; MA Ying-Jun

Chinese Physics C> 2002, Vol. 26> Issue(2) : 104-107

A New Level Scheme of ¹²⁷I

ZHANG Yu-Hu ^, ,
MA Ying-Jun

Institute of Modern Physics, The Chinese Academy of Sciences, Lanzhou 730000, China2 Institute of Physics and Tandem Accelerator Center, University of Tsukuba, Ibaraki 305-0006, Japan

Abstract
HTML
Reference
Related

PDF

Abstract：
Study of in beam γ ray spectroscopy of ¹²⁷I has been performed using ¹²⁴Sn(⁷Li, 4n)¹²⁷I reaction at 32 MeV beam energy. A new level scheme of ¹²⁷I has been established including 25 new levels and 52 new γ transitions. Negative parity levels based on 11/2^－ π h_11/2 particle state have been observed up to (35/2^－) extending our knowledge of decoupled structures to the heavier iodine isotope. Two ΔI=2 yrast positive-parity levels have been proposed to be associated mainly with the πg_7/2 configuration due to observations of several strong inter band transitions. Two weakly populated ΔI=2 positive parity levels and a high-lying ΔI=1 cascade have been newly identified and tentatively assigned as πd_5/2 one-quasiparticle and three quasiparticle bands, respectively.

References

[1]

. Gordon D M, GAI M, Gaigalas A K et al. Phys. Lett., 1977, B67: 1612. Hagemann U, Keller H-J, Brinckmann H-F. Nucl. Phys., 1977, A289: 292 3. Shroy R E, Gordon D M, GAI M et al. Phys. Rev., 1982, C26: 10894. GAI M, Gordon D M, Shroy R E et al. Phys. Rev., 1982, C26: 11015. LIANG Y, Fossan D B, Hughes J R et al. Phys. Rev., 1992, C45: 10416. LIANG Y, Fossan D B, Hughes J R et al. In: Proceedinds of the International Conference on High Spin Physics and Gamma soft Nuclei, Salad in J X et aled. Sigapore: World Scientific Press, 1991. 308—3147. Goswami R, Sethi B, Banerjee P. Phys. Rev., 1993, C47: 10138. Sharma H, Sethi B, Goswami R et al. Phys. Rev., 1999, C59: 24469. Donau F, Hagemann U. Z. Phys., 1979, A293: 31 10. KostovaL G, Andrejtsche ffW, Kostov L K et al. Nucl. Phys., 1988, A485: 3111. ZHANG C T, Bhattacharyya P, Daly P J et al. Nucl. Phys., 1998, A628: 386

[1]	SUN Qin , GUO Jian-You . Neutron halos in the excited states for N=127 isotones. Chinese Physics C, 2009, 33(S1): 130-133. doi: 10.1088/1674-1137/33/S1/041
[2]	WANG Hong-Wei , DUAN Li-Min , YUAN Xiao-Hua , FU Fen . The Study of Unbound Nuclei ¹¹N Resonance Energy Level. Chinese Physics C, 2006, 30(1): 18-21.
[3]	LIU Ying , LIANG Nai-Li , LI Ming-Fei , ZHU Li-Hua , WU Xiao-Guang , HE Chuang-Ye , CUI Xing-Zhu , LI Li-Hua , WANG Zhi-Min , LI Guang-Sheng , WEN Shu-Xian , HUO Jun-De , YANG Ch . Level Structure of ¹⁵⁵Tm. Chinese Physics C, 2006, 30(S2): 160-162.
[4]	MA Hai-Liang , DONG Bao-Guo . Rotational Structures of Neutron Deficient Isotopes ^125,127,129Ce. Chinese Physics C, 2006, 30(S2): 81-83.
[5]	SHEN Shui-Fa , LI Yan , GU Jia-Hui . New Low-spin Levels in ⁷⁶Se and Discussion of Its Yrast Band Structure. Chinese Physics C, 2005, 29(2): 139-146.
[6]	ZHANG Yu-Hu , LIU Min-Liang , de Angelis , GUO Wen-Tao . Level Scheme of ⁹⁴ Mo at High Angular Momentum. Chinese Physics C, 2004, 28(9): 941-946.
[7]	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.
[8]	ZHENG Yong , ZHOU Xiao-Hong , ZHANG Yu-Hu , LIU Zhong , PAN Qiang-Yan , GAN Zai-Guo , , , , , , , , , . Level Scheme of High-Spin States in ¹⁴⁵Tb. Chinese Physics C, 2002, 26(4): 359-363.
[9]	LIU Min-Liang , ZHANG Yu-Hu , ZHOU Xiao-Hong , HE Jian-Jun , GUO Ying-Xiang , LEI Xiang-Guo , HUANG Wen-Xue , LIU Zhong , LUO Yi-Xiao , FENG Xi-Chen , ZHANG Shuang-Quan , XU Xiao , , , , . High-Spin Level Scheme of Odd-odd ¹⁴²Pm. Chinese Physics C, 2002, 26(4): 354-358.
[10]	ZHANG Li , HU QingYuan , ZHAO JinHua , ZHENG JiWen , LI ZhanKui , LI ShiHong , GAN ZaiGuo , YU Yong , FAN HongMei , GUO Bin , ZHANG TianMei , WANG ChunFang , WANG TongQing , JIN GenMing , PU YueHu , , , , . γ Scheme Following ²⁰⁸Hg β^－ Decay. Chinese Physics C, 2000, 24(9): 823-828.
[11]	Gu Jianzhong , Wu Xizhen , Zhao Enguang , Zhuo Yizhong . Nearest Neighbour Level Spacing and Level Curvature Distributions of Single-Particle in Heavy Nuclei. Chinese Physics C, 1997, 21(6): 535-540.
[12]	Xie Yuanxiang , Xu Shuwei , Guo Yingxiang , Ma Ruichang , Ge Yuanxiu , Li Zhankui , Wang Chunfang , Guo Bin , Xing Jianping , Zhang Tianmei , Zhu Shaofei , Xu Wang . First Study of Weak (EC+β⁺) Decay Branch for the Neutron-Deficient Isotoep ²⁰⁹Fr. Chinese Physics C, 1997, 21(4): 289-291.
[13]	Zhu Shengjiang , Wang Muge , Deng Jingkang . Level Schemes in Neutron-Rich ¹⁴¹Xe、¹⁵²Ce、¹⁵³Nd and ¹⁶⁰Sm Nuclei. Chinese Physics C, 1997, 21(2): 104-109.
[14]	Shen Shuifa , Yuan Shuanggui , Yang Weifan , Fang Keming , Mou Wantong , Zhang Zueqian , Li Zongwei , Zhong Jiquan , Guo Tianrui , Chen Zhantu . Decay Scheme of ²²⁹Ra. Chinese Physics C, 1997, 21(9): 783-786.
[15]	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.
[16]	Zhang Xueqian , Yuan Shuanggui , Yang Weifan , Mou Wantong , Yu Xian , Li Zongwei , Guo Tianrui , Du Yifei , Luo Yixiao . The Decay Scheme of ¹⁷⁵Er. Chinese Physics C, 1996, 20(8): 673-677.
[17]	Zhou Xiaohong , Sun Xiangfu , Guo Yingxiang , Lei Xiangguo , Liu Zhong , Chen Xinfeng , Zhang Yuhu , Jin Hanjuan , Luo Yixiao , Wen Shuxian , Yuan Guanjun , Li Guangsheng , Yang Chunxiang . Study of Excited States in Neutron-Deficient ¹⁹⁷Bi. Chinese Physics C, 1995, 19(11): 961-967.
[18]	Xu Shuwei , Xie Yuanxiang , Pan Qiangyan , Zhang Juping , Zhang Xueqian , Wang Yihao , Ge Yuanxiu , Yin Xijin , Wang Chunfang , Zhang Tianmei , Liu Zhong , Guo Bing , Luo Yixiao , Xing Zheng , Chen Xingqu . First Study of EC/β⁺ Decay Schemes for Neutron-Deficient Isotopes ¹⁵³Er and ¹⁵⁷Yb. Chinese Physics C, 1995, 19(3): 193-202.
[19]	SUN Xiang-Fu , WANG Ji-Cheng , GUO Ying-Xiang , LEI Xiang-Guo , LUO Yi-Xiao , YU Jian-Fang , XU Xiao-Ji , WEN Shu-Xian , WENG Pei-Kun , LI Sheng-Gang , YANG Chun-Xiang . Observation of New Levels in ¹²¹Cs. Chinese Physics C, 1992, 16(10): 938-942.
[20]	LIU Liang-Gang . ONE LOOP RENORMALIZATION OF NUCLEON ENERGY DENSITY IN NUCLEAR MATTER BY CHIRAL σ MODEL. Chinese Physics C, 1990, 14(9): 822-828.

Access

Get Citation

ZHANG Yu-Hu and MA Ying-Jun. A New Level Scheme of ¹²⁷I[J]. Chinese Physics C, 2002, 26(2): 104-107.

ZHANG Yu-Hu and MA Ying-Jun. A New Level Scheme of ¹²⁷I[J]. Chinese Physics C, 2002, 26(2): 104-107. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2001-10-22
Revised: 1900-01-01

Article Metric

Article Views(1505)
PDF Downloads(653)
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

A New Level Scheme of ¹²⁷I

Corresponding author: ZHANG Yu-Hu,

Institute of Modern Physics, The Chinese Academy of Sciences, Lanzhou 730000, China2 Institute of Physics and Tandem Accelerator Center, University of Tsukuba, Ibaraki 305-0006, Japan

Received Date: 2001-10-22

Accepted Date: 1900-01-01

Available Online: 2002-02-05

Abstract: Study of in beam γ ray spectroscopy of ¹²⁷I has been performed using ¹²⁴Sn(⁷Li, 4n)¹²⁷I reaction at 32 MeV beam energy. A new level scheme of ¹²⁷I has been established including 25 new levels and 52 new γ transitions. Negative parity levels based on 11/2^－ π h_11/2 particle state have been observed up to (35/2^－) extending our knowledge of decoupled structures to the heavier iodine isotope. Two ΔI=2 yrast positive-parity levels have been proposed to be associated mainly with the πg_7/2 configuration due to observations of several strong inter band transitions. Two weakly populated ΔI=2 positive parity levels and a high-lying ΔI=1 cascade have been newly identified and tentatively assigned as πd_5/2 one-quasiparticle and three quasiparticle bands, respectively.

HTML

Reference (1)

A New Level Scheme of ¹²⁷I

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article

A New Level Scheme of ¹²⁷I

Corresponding author: ZHANG Yu-Hu,

HTML

目录

A New Level Scheme of 127I

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article

A New Level Scheme of 127I

Corresponding author: ZHANG Yu-Hu,

HTML

目录

A New Level Scheme of ¹²⁷I

A New Level Scheme of ¹²⁷I