Rotational Bands in <SUP>169</SUP>Re

ZHOU Xiao-Hong; ZHANG Yu-Hu; ZHENG Yong

Chinese Physics C> 2002, Vol. 26> Issue(10) : 991-997

Rotational Bands in ¹⁶⁹Re

Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China2 Japan Atomic Energy Research Institute, Tokai, Ibaraki 319 1195, Japan3 Chiba Institute of Technology, Narashino, Chiba 275 0023, Japan

Abstract
HTML
Reference
Related

PDF

Abstract：
The excited states of ¹⁶⁹Re have been investigated by means of in beam γ-ray spectroscopy techniques with the ¹⁴⁴Sm(²⁸Si, 1p2nγ)¹⁶⁹Re reaction. X-γ and γ-γ-t coincidences, DCO ratios and intra-band B(M1)/B(E2) ratios were measured. A strongly coupled band based on the 9/2^－ Nilsson state and a decoupled band built on the h_9/2 intruder proton orbital (nominally 1/2^－) have been established. Their configurations are proposed on the basis of B(M1)/B(E2) ratios and by comparing the band properties with known bands in neighboring odd proton nuclei. The neutron AB crossings are observed at ω=0.23 and 0.27 MeV for the π9/2^－ and π1/2^－ bands, respectively. Band properties of the neutron AB crossing frequencies, alignment gains and signature splittings are discussed, and compared with those in the heavier odd-A Re isotopes.

References

[1]

Bark R A, Dracoulis G D, Stuch6ery A E et al. Nucl. Phys.，1989, A501:1572 Carlsson H, Bergstr#246;m M, Brockstedt A et al.Nucl. Phys.，1993, A551:2953 Hildingsson L, Klamra W, Lindblad Th et al. Nucl. Phys，1990, A513:3944 Bengtswm R, Gatrett J D. International Review of Nuclear Physics, Vol.2, ad. EttBelend T. Rekatad J. Veaqen J S Singapore: World Scientific. 19895 Dracoulis G D. Fahricius B. Kibedi T et al .Contrih. Int. Conf. Nuclear Structure at High Angular Momentum, Ottawa, 1992.366 Shirlev V S. Nucl. Data Sheets, 1991.64:5057 Schmidt-Ott W D. Salewski H, Meissner F et al. Nucl. Phys.，1992. A545:6468 Furuno K, Oshima M, Komatsuhara T et al. Nucl. Instr. and Meth.，1999, A421:2119 Juutinen S. Ahonen P. Hattula J et al. Nucl. Phys.，1991，A526:34610 Mueller Vf F, Jin H Q, Lewis J M et al. Phys. Rev.，1999, 059:200911 Bark R A, Tnrmanen S. Back T et al. Nucl. Phys，1999, A657:11312 Bengtsson R. Frauendod S. Nucl. Phys..1979. A324:2713 Bengtsson R .Frauendod S. Nucl. Phys.，1979, A327:13914 Wells J C. Johnson N R. Baktash C et al Phys. Rev.，1989, 040:72515 Bark R A.Dracoulis G D. Stuchhery A E et al. Nucl. Phys.，1990. A514:50316 Theine K, Byme :A P, Hubel H et al .Nucl. Phys.，1992,A548:7117 D#246;nau F. Frauendurf S. Pros，Conf. nn High Angular Momentum Properties of Nuclei, Oak Ridge. 1982, ed Johnson N R.Yew York: Harwood Academic, 1983. 14318 Larabee A J, Courtney L H, Frauendnrf S et al. Phys. Rev.. 1984. C29: 19.1419 Dracoulis G D, Sprouse G D. Kianer O C et al.Phys. Rev.，1984. C29:1576

[1]	WANG Wen-Ming , LI Xia , ZHAO Zhi-Xiang , ZHOU Zu-Ying , YU Hong-Wei , WU Hai-Cheng , WEI Yi-Xiang . Measurement of neutron cross sections and resonance parameters of ¹⁶⁹Tmbelow 100 eV. Chinese Physics C, 2010, 34(2): 177-181. doi: 10.1088/1674-1137/34/2/004
[2]	XING Ye-Bing , ZHOU Xiao-Hong , ZHANG Yu-Hu . Quasiparticle Nature of Rotational Bands in ¹⁸⁷Pt. Chinese Physics C, 2007, 31(3): 247-250.
[3]	CHE Xing-Lai , ZHU Sheng-Jiang , CHEN Yong-Jing , DING Huai-Bo , LI Ming-Liang . High Spin Band Structure in ¹¹²Ru. Chinese Physics C, 2006, 30(S2): 154-156.
[4]	FANG Yong-De , ZHANG Yu-Hu , ZHOU Xiao-Hong . Study of Quasiparticles Bands in Odd-Odd ¹⁸⁸Au. Chinese Physics C, 2006, 30(2): 99-104.
[5]	ZHU Sheng-Jiang , LI Ming-Liang , CHE Xing-Lai , XIAO Shu-Dong , CHEN Yong-Jing , YU Ying-Nan , DING Hui-Bo , XU Qiang , ZHU Li-Hua , WEN Shu-Xian , WU Xiao-Guang , LI Guang-Sheng , . Collective Band Structures of the Nuclei near N=82 Closed Shell in A=135 Region. Chinese Physics C, 2006, 30(S2): 141-145.
[6]	ZHU Sheng-Jiang , XIAO Shu-Dong , CHE Xing-Lai , YU Ying-Nan , LI Ming-Liang , CHEN Yong-Jing , ZHU Li-Hua , WEN Shu-Xian , WU Xiao-Guang , LI Guang-Sheng . Collective Dand Structures in Doubly Odd ¹³⁶La Nucleus. Chinese Physics C, 2005, 29(11): 1047-1051.
[7]	SONG Li-Tao , ZHOU Xiao-Hong , ZHANG Yu-Hu , GUO Ying-Xiang , LEI Xiang-Guo , ZHENG Yong , LIU Min-Liang , de Angelis . Experimental Study of High-Spin Band Structures of ¹⁸³Au. Chinese Physics C, 2005, 29(8): 736-740.
[8]	XU Yan-Bing , ZHOU Xiao-Hong , SONG Li-Tao , GUO Ying-Xiang , SUN Zhi-Yu . Study of Collective Rotational Bands in ¹⁷⁹Pt. Chinese Physics C, 2004, 28(6): 584-587.
[9]	CHE Xing-Lai , ZHU Sheng-Jiang , LI Ming-Liang , YU Yong-Nan . Identification of Collective Bands in Neutron-Rich ¹⁰⁸Ru Nucleus. Chinese Physics C, 2004, 28(S1): 56-58.
[10]	ZHANG Yu-Hu , WANG Hua-Lei , LIU Min-Liang , ZHOU Xiao-Hong , GUO Wen-Tao , de Angelis , XU Fu-Rong . Investigation on Structural Properties of the πi_13/2⊙νi_13/22-qp Band in Odd-odd ¹⁸⁴Au. Chinese Physics C, 2004, 28(9): 907-913.
[11]	SONG Li-Tao , ZHOU Xiao-Hong , ZHANG Yu-Hu , GUO Ying-Xiang , SUN Zhi-Yu . Study of the 1/2[660] Rotational Band in ^{179,183^Au}. Chinese Physics C, 2004, 28(S1): 59-61.
[12]	ZHANG Yu-Hu , ZHOU Xiao-Hong . Experimental Study of High-Spin Band Structures in Odd-Odd ¹⁷²Re. Chinese Physics C, 2003, 27(7): 574-580.
[13]	ZHOU Xiao-Hong , XU Fu-Rong , ZHANG Yu-Hu , ZHENG Yong . Configuration-Dependent Bands in ¹⁶⁹Re. Chinese Physics C, 2003, 27(11): 984-989.
[14]	GUO JianYou , XU FuXin , RUAN TuNan . Research on Superdeformed Bands with Bohr-Mottelson's Formulas. Chinese Physics C, 2000, 24(9): 829-838.
[15]	WEN Shu-Xian¹ , HAN Guang-Bing¹ , WU Xiao-Guang¹ , LIU Xiang-An¹ , LI Guang-Sheng¹ , YUAN Guan-Jun¹ , WANG Zhi-Min¹ , WENG Pei-Kun¹ , YANG Chun-Xiang¹ , MA Ying-Jun² , LU Jing-Bin² , GUO Ying-Xiang<sup , . Study of Magnetic Rotational Band. Chinese Physics C, 2000, 24(S1): 87-90.
[16]	Ma Yingjun , Zhao Guangyi , Wang Zhe , Zheng Hua , Liu Yunzuo , Zhou Shangui , Wu Xiaoguang , Yang Chunxiang . Yrast Band and Four-Quasiparticle Band in Odd-Odd ¹⁶²Lu Nucleus. Chinese Physics C, 1997, 21(11): 970-975.
[17]	Zhang Yuhu , Zhao Qingzhong , Zhou Xiaohong Xu Hushan , Guo Yingxiang , Lei Xiangguo , Lu Jun , Zhu Shaofei , Gou Quanbu , Jin Hanjuan , Liu Zhong , Luo Yixiao , Sun Xiangfu , Zhu Yongtai , . Band Structure in Doubly Odd ¹⁷⁰Ta. Chinese Physics C, 1997, 21(2): 187-191.
[18]	Lei Yian , Zeng Jinyan , Zhao Enguang . Microscpic Mechanism of Identical Multi-quasiparticle Bands. Chinese Physics C, 1997, 21(3): 227-234.
[19]	ZHANG Ji-Ye . On the Difference of High Spin Band Structure Between I and Ce Isotopes. Chinese Physics C, 1993, 17(8): 734-738.
[20]	ZHANG Jing-Ye . ON THE BACKBENDING MECHANISM OF MUITIBAND STRUCTURE IN NUCLEUS ¹⁸⁵Pt. Chinese Physics C, 1990, 14(11): 1039-1044.

Access

Get Citation

ZHOU Xiao-Hong, ZHANG Yu-Hu and ZHENG Yong. Rotational Bands in ¹⁶⁹Re[J]. Chinese Physics C, 2002, 26(10): 991-997.

ZHOU Xiao-Hong, ZHANG Yu-Hu and ZHENG Yong. Rotational Bands in ¹⁶⁹Re[J]. Chinese Physics C, 2002, 26(10): 991-997. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2002-04-16
Revised: 1900-01-01

Article Metric

Article Views(3136)
PDF Downloads(517)
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

Rotational Bands in ¹⁶⁹Re

Corresponding author: ZHOU Xiao-Hong,

Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China2 Japan Atomic Energy Research Institute, Tokai, Ibaraki 319 1195, Japan3 Chiba Institute of Technology, Narashino, Chiba 275 0023, Japan

Received Date: 2002-04-16

Accepted Date: 1900-01-01

Available Online: 2002-10-05

Abstract: The excited states of ¹⁶⁹Re have been investigated by means of in beam γ-ray spectroscopy techniques with the ¹⁴⁴Sm(²⁸Si, 1p2nγ)¹⁶⁹Re reaction. X-γ and γ-γ-t coincidences, DCO ratios and intra-band B(M1)/B(E2) ratios were measured. A strongly coupled band based on the 9/2^－ Nilsson state and a decoupled band built on the h_9/2 intruder proton orbital (nominally 1/2^－) have been established. Their configurations are proposed on the basis of B(M1)/B(E2) ratios and by comparing the band properties with known bands in neighboring odd proton nuclei. The neutron AB crossings are observed at ω=0.23 and 0.27 MeV for the π9/2^－ and π1/2^－ bands, respectively. Band properties of the neutron AB crossing frequencies, alignment gains and signature splittings are discussed, and compared with those in the heavier odd-A Re isotopes.

HTML

Reference (1)

Rotational Bands in ¹⁶⁹Re

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article

Rotational Bands in ¹⁶⁹Re

Corresponding author: ZHOU Xiao-Hong,

HTML

目录

Rotational Bands in 169Re

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article

Rotational Bands in 169Re

Corresponding author: ZHOU Xiao-Hong,

HTML

目录

Rotational Bands in ¹⁶⁹Re

Rotational Bands in ¹⁶⁹Re