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

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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

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[19]	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.
[20]	R.L.Robinson , A.V.Ramayya . DISCOVERY OF MULTIPLE,COLLECTIVE BAND STRUCTURES IN NUCLEI WITH A=60—80. Chinese Physics C, 1979, 3(3): 355-381.

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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

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

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通讯作者: 陈斌, bchen63@163.com

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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.

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Rotational Bands in 169Re

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Rotational Bands in ¹⁶⁹Re

Rotational Bands in ¹⁶⁹Re