Chinese Physics C > 2006, Vol. 30 > Issue(S2): 154-156

High Spin Band Structure in¹¹²Ru

Department of Physics, Tsinghua University, Beijing 100084, China2 Department of Physics, Vanderbilt University, Nashville, Tennessee 37235, USA3 Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA

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Through measuring high-fold prompt γ-ray coincidence events following the spontaneous fission of ²⁵²Cf with the Gammasphere detector array, new level scheme in the very neutron-rich ¹¹²Ru nucleus has been established.The ground-state band and the one-phonon γ-vibrational band have been confirmed and extended with spin up to 16h and 15h, respectively. The other two side bands, one proposed as two-phonon γ-vibrational band and another proposed as two-quasiparticle band, have been identified for the first time. From cranked shell model calculations, ¹¹²Ru nucleus may have triaxial deformation with parameters β ₂～0.27, γ～－29° and the band crossing in the yrast band is due to the alignment of two h _11/2neutrons. The characteristics for the quasiparticle band and γ-vibrational bands have also been discussed.

References

[1]

. Hamilton J H et al. Prog. Part. Nucl. Phys., 1995, 35: 6352. ZHU S J et al. Chin. Phys. Lett., 1998, 15: 7933. Durell J L et al. Phys. Rev., 1995, C52: R23064. YANG L M et al. Chin. Phys. Lett., 2001, 18: 245. XU R Q et al. Chin. Phys. Lett., 2002, 19: 1806. ZHANG Z et al. Phys. Rev., 2003, C67: 0643077. ZHU S J et al. Rev. Mex. Fis., 1992, 38: 538. LU Q H et al. Phys. Rev., 1995, C52: 13489. Deloncle I et al. Eur. Phys. J., 2000, A8: 177-18510. JIANG Z et al. Chin. Phys. Lett., 2003, 20: 35011. CHE X L et al. Chin. Phys. Lett., 2004, 21: 190412. ZHU S J et al. Phys. Rev., 1999, 59: 131613. ZHU S J et al. Phys. Lett., 1995, B357: 27314. Radford D C et al. Nucl. Instrum. Methods, 1995, A361:29715. HUA H et al. Phys. Lett., 2003, B562: 21016. Bengtsson R et al. Nucl. Phys., 1972, A237: 13917. Frauendorf S et al. Phys. Lett., 1983, B125: 219

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[16]	Fang Keming,Liu Jingyi,Shi Shuanghui,Gu Jiahui,Zeng Jiping,Yu Xiaohan,Shen Shuifa,Li Yan. Decay of⁹⁵Ru. Chinese Physics C, 1999, 23(8): 820-827.
[17]	Zhang Changhua,Gu Jinnan. Shell Model Calculations for Light Neutron-Rich Nuclei. Chinese Physics C, 1996, 20(3): 240-245.
[18]	ZHU Sheng-Jiang. Research on Level Structures of Neutron-Rich Nuclei and Shape Phase Transitions Around A～100 and 150 Regions. Chinese Physics C, 1993, 17(4): 353-361.
[19]	WANG Su-Fang,CAI Wei,ZHENG Ji-Wen,LIANG Guo-Zhao. STUDY ON CROSS SECTION OF THE SHORT LIFE EVAPORATION RESIDUES IN REACTION¹²C+¹¹²Sn. Chinese Physics C, 1989, 13(7): 627-631.
[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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CHE Xing-Lai, ZHU Sheng-Jiang, CHEN Yong-Jing, DING Huai-Bo and LI Ming-Liang. High Spin Band Structure in ¹¹²Ru[J]. Chinese Physics C, 2006, 30(S2): 154-156.

CHE Xing-Lai, ZHU Sheng-Jiang, CHEN Yong-Jing, DING Huai-Bo and LI Ming-Liang. High Spin Band Structure in ¹¹²Ru[J]. Chinese Physics C, 2006, 30(S2): 154-156. shu

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Received: 2006-10-16
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

High Spin Band Structure in¹¹²Ru

Corresponding author:CHE Xing-Lai,

Department of Physics, Tsinghua University, Beijing 100084, China2 Department of Physics, Vanderbilt University, Nashville, Tennessee 37235, USA3 Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA

Received Date:2006-10-16

Accepted Date:1900-01-01

Available Online:2006-01-03

Abstract:Through measuring high-fold prompt γ-ray coincidence events following the spontaneous fission of²⁵²Cf with the Gammasphere detector array, new level scheme in the very neutron-rich¹¹²Ru nucleus has been established.The ground-state band and the one-phonon γ-vibrational band have been confirmed and extended with spin up to 16h and 15h, respectively. The other two side bands, one proposed as two-phonon γ-vibrational band and another proposed as two-quasiparticle band, have been identified for the first time. From cranked shell model calculations,¹¹²Ru nucleus may have triaxial deformation with parameters β₂～0.27, γ～－29° and the band crossing in the yrast band is due to the alignment of two h_11/2neutrons. The characteristics for the quasiparticle band and γ-vibrational bands have also been discussed.

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High Spin Band Structure in¹¹²Ru

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