Study of Collective Rotational Bands in <SUP>179</SUP>Pt

XU Yan-Bing; ZHOU Xiao-Hong; SONG Li-Tao; GUO Ying-Xiang; SUN Zhi-Yu

Chinese Physics C> 2004, Vol. 28> Issue(6) : 584-587

Study of Collective Rotational Bands in ¹⁷⁹Pt

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：
High-spin states in ¹⁷⁹Pt have been studied experimentally using the ¹⁴⁹Sm(³⁵Cl, p4n) fusion-evaporation reaction at beam energies of 164—180MeV. Measurements of γ-ray excitation function, X-γ coincidences and γ-γ-t coincidences were carried out with 13 BGO(AC) HPGe and 3 LOAX detectors. Based on the measured results, three rotational bands built on intrinsic states assigned to the 1/2^－[521], 5/2^－[512] and 7/2⁺[633] Nilsson configurations have been established for ¹⁷⁹Pt. It has been observed that the aligned angular moment in the 1/2^－[521] band increases suddenly around hω=0.27MeV. The big signature splitting has been observed in the 7/2⁺[633] band. These phenomena are discussed by referring to the systematics of the level structure in the Pt isotopes and isotones of ¹⁷⁹Pt.

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[1]

. Dracoulis G D, Fabricius B, Bark R A et al. Nucl. Phys. , 1990,A510: 5332. Nyberg J, Johnson A, Carpent er M P et al. Nucl. Phys. , 1990,A511: 923. De Voigt M J A, Kaczarowski R, Riezebos H J et al. Nucl. Phys. ,1990, A507: 4474. Kodev F G, Carpenter M P, Janssens R V F et al. Nucl. Phys. ,2001, A682: 4875. Dracoul is G D, Stuchbery A E, A P Byrne et al. J. Phys. , 1986,G12:L976. De Voigt M J A, Kaczarowski R, Riezebos H J et al. Nucl. Phys. ,1990, A507: 4727. Popescu D G, Waddngton J C, Cameron J A et al. Phys. Rev. , 1997,C55: 11758. Carpenter M P, Bingham C R, Courtney L H et al. Nucl. Phys. ,1990, A519: 1259. Hebbinghaus G, Kutsarova T, Gast W et al . Nucl. Phys. , 1990,A514: 22510. Le Blanc F, Lunney D, Obert J et al. Phys. Rev. , C60: 15431011. Hagberg E, Hansen P G, Hornshoj P et al. Nucl . Phys. , 1979,A318: 2912. Schrew e U J, Tidemand..Petersson P, Goudy G M et al . Phys. Lett . ,1980, 91B: 4613. Mailloux J, Etude la St ructure Nucleaire a Haut Spin du 178Pt et 179Pt ,Thesis, Univ. de Mont real, 199014. ZHANG C T, Bhattacharyya P, Daly P et al. Nucl. Phys. , 1998,A628: 38615. ZHENG Yong, ZHOU Xiao-Hong, LIU Min-Liang et al. HEP NP,2002, 26( 9) : 909(in Chinese)(郑勇,周小红,柳敏良等.高能物理与核物理,2002,26(9):909) 16. Walker P M, Dracoulis G D, Johnston A et al. J. Phys. G: Nucl .Phys. , 1978, 4( 10) : 165517. Dracoulis G D, Fahlander C, Byrne A P et al. Nucl. Phys. , 1983,A401: 49018. Varmette P G, Shidot D T, MA W C et al. Phys. Lett . , 1997, B410:10319. Frauendorf S, May F R. Phys. Lett . , 1983, B125: 245

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[12]	GONG Lun-Xun , YU Lei . Low-Lying Excited High-K Multi-quasiparticle Bands in 178 179Hf. Chinese Physics C, 2005, 29(10): 960-963.
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[15]	Zhang Zhanjun , Liu Yong , Sang Jianping . Microscopic Study of Low-Lying States of Even ^190─200Pt Isotopes. Chinese Physics C, 1998, 22(9): 836-843.
[16]	Dong Baoguo , Shen Caiwan , Chen Yoagshou . Study of Odd-A Tm Isotopic Chain Properties of Decoupling parameter of [411 1/2] Band. Chinese Physics C, 1997, 21(9): 838-843.
[17]	KE Yao-Huang , LIN Zhong-Jin . THE INFLUENCE OF EMC EFFECT ON LARGE-p_T DIRECT PHOTON PRODUCTION. Chinese Physics C, 1990, 14(7): 620-624.
[18]	ZHANG Jing-Ye . ON THE BACKBENDING MECHANISM OF MUITIBAND STRUCTURE IN NUCLEUS ¹⁸⁵Pt. Chinese Physics C, 1990, 14(11): 1039-1044.
[19]	ZHANG Jing-Ye , Zhong Ji-Quan . ON πh_9/2 ALIGNMENT IN Pt EVEN ISOTOPES. Chinese Physics C, 1988, 12(1): 130-133.
[20]	ZHANG Jing-Ye , ZHONG Ji-Quan , JIAO Dun-Pang , GE Yuan-Xiu , MA Xi-Liang . ON THE νi_13/2PAIR IN EVEN Pt ISOTOPES. Chinese Physics C, 1987, 11(1): 128-132.

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XU Yan-Bing, ZHOU Xiao-Hong, SONG Li-Tao, GUO Ying-Xiang and SUN Zhi-Yu. Study of Collective Rotational Bands in ¹⁷⁹Pt[J]. Chinese Physics C, 2004, 28(6): 584-587.

XU Yan-Bing, ZHOU Xiao-Hong, SONG Li-Tao, GUO Ying-Xiang and SUN Zhi-Yu. Study of Collective Rotational Bands in ¹⁷⁹Pt[J]. Chinese Physics C, 2004, 28(6): 584-587. shu

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Received: 2003-09-23
Revised: 1900-01-01

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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

Study of Collective Rotational Bands in ¹⁷⁹Pt

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: 2003-09-23

Accepted Date: 1900-01-01

Available Online: 2004-06-05

Abstract: High-spin states in ¹⁷⁹Pt have been studied experimentally using the ¹⁴⁹Sm(³⁵Cl, p4n) fusion-evaporation reaction at beam energies of 164—180MeV. Measurements of γ-ray excitation function, X-γ coincidences and γ-γ-t coincidences were carried out with 13 BGO(AC) HPGe and 3 LOAX detectors. Based on the measured results, three rotational bands built on intrinsic states assigned to the 1/2^－[521], 5/2^－[512] and 7/2⁺[633] Nilsson configurations have been established for ¹⁷⁹Pt. It has been observed that the aligned angular moment in the 1/2^－[521] band increases suddenly around hω=0.27MeV. The big signature splitting has been observed in the 7/2⁺[633] band. These phenomena are discussed by referring to the systematics of the level structure in the Pt isotopes and isotones of ¹⁷⁹Pt.

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Study of Collective Rotational Bands in 179Pt

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Study of Collective Rotational Bands in 179Pt

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Study of Collective Rotational Bands in ¹⁷⁹Pt

Study of Collective Rotational Bands in ¹⁷⁹Pt