First Observation for Isotope <SUP>265</SUP>Bh(Z=107)

GAN Zai-Guo; FAN Hong-Mei; QIN Zhi; WU Xiao-Lei; GUO Jun-Sheng; LEI Xiang-Guo; DONG Cheng-Fu; XU Hua-Gen; CHEN Ruo-Fu; ZHANG Fu-Ming; GUO Bin; LIU Hong-Ye; WANG Hua-Lei

Chinese Physics C> 2004, Vol. 28> Issue(4) : 332-334

First Observation for Isotope ²⁶⁵Bh(Z=107)

Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China2 Department of Physics,Nanjing University,Nanjing 210008,China

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Abstract：
New isotope ²⁶⁵Bh(Z=107) was produced in bombardment of an ²⁴³Am target with 135MeV ²⁶Mg ions at HIRFL. Identification was made by observation of correlated α particle decays between the new isotope ²⁶⁵Bh and its ²⁶¹Db and ²⁵⁷Lr daughters with four pairs of detectors. A total of 8 correlated decay events of ²⁶⁵Bh and 4 decay events of ²⁶⁴Bh were identified. ²⁶⁵Bh decays with a 0.94+0.70-0.31s half-life by emission of α particle with an average energy of (9.24±0.05)MeV.

References

[1]

. Münzenberg G, Hofmann S , Heβberger F P et al . Z. Phys. , 1981 ,A300 :1072.　Wilk P A , Gregorich K E , Tüler A et al . Phys. Rev. Lett . , 2000 ,85 :26973.　Wapstra A H , Audi G. Nucl . Phys. , 1985 , A432 :554.　Mê ller P , Nix J R , Kratz KL. Atom. Data Nucl . Data Tables , 1995 ,66 :3155.　Sümmerer K, Brügger M, Brüchle Wet al . GSI Annual Report , 1983 ,84 —1 :2466.　Gregorich K E , Lane M R , Mahar M F , Lee D M et al . Phys. Rev.Lett . , 1994 , 72 :14237.　WU Xiao2Lei , GAN Zai2Guo , GUO Jun2Sheng et al . Nuclear Tech2niques , in press (in Chinese)(吴晓蕾,甘再国,郭俊盛等. 核技术, (待发表) )8.　Gregorich K E. Nucl . Instrum. Methods Phys. Res. , 1991 , A302 :1359.　Firestone R B , Shirley V S , Baglin CMet al . Table of Isotopes (eighthedition) LBL , New York : 199610.　REN Zhong2Zhou , CHEN Ding2Han , TAI Fei et al . Phys. Rev. ,2003 , C67 :06430211.　Hoffmann S , Heβberger F P , Ackermann D A et al . Eur. Phys. J . ,2002 , A14 :147

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[2]	WANG Xue-Lei , JIN Zhen-Lan , ZENG Qing-Guo . Production of the new gauge boson B_H via e^－ collision in the littlest Higgs model. Chinese Physics C, 2008, 32(3): 165-171. doi: 10.1088/1674-1137/32/3/001
[3]	ZHENG Shi-Jie , XU Fu-Rong . Shape Coexistence in Light Krypton Isotopes. Chinese Physics C, 2006, 30(S2): 121-123.
[4]	FAN Hong-Mei , WU Xiao-Lei , GUO Jun-Shen , GAN Zai-Guo , QIN Zhi , LEI Xiang-Guo , DONG Cheng-Fu , XU Hua-Gen , CHEN Ruo-Fu , ZHANG Fu-Ming , GUO Bin , LIU Hong-Ye , WANG Hua-Lei , , , . Identification of the New Isotope 265107Bh by α Correlated Decay Chains. Chinese Physics C, 2005, 29(5): 451-455.
[5]	ZHANG Hong-Fei , ZUO Wei , LI Jun-Qing , REN Xiu-Zai , MA Zhong-Yu , CHEN Bao-Qiu . Ground State Properties of the Newly Discovered Nucleus 256Bh and It's Alpha Decay Chain. Chinese Physics C, 2005, 29(9): 886-891.
[6]	Falih H , LI Yan-Song , LONG Gui-Lu . Isospin and Mixed Symmetry Excitations in ^60—66Zn Isotopes. Chinese Physics C, 2004, 28(4): 370-376.
[7]	HE Xiao-Tao , LIU Shu-Xin , YU Shao-Ying , ZENG Jin-Yan , ZHAO An-Guang . Identical Superdeformed Bands in Tl Isotope. Chinese Physics C, 2004, 28(S1): 36-39.
[8]	YE Wei . Isotopic Effects in Prescission Particle Emission. Chinese Physics C, 2003, 27(3): 233-237.
[9]	ZHU Sheng-Jiang , XU Rui-Qing , ZHANG Zheng , JIANG Zhuo , GAN Cui-Yun . Collective Bands in Neutron-Rich ¹⁰⁷Ru Nucleus. Chinese Physics C, 2002, 26(8): 791-796.
[10]	XU Yan-Bing , YANG Wei-Fan , YUAN Shuang-Gui , XIAO Yong-Hou , PAN Qiang-Yan , LI Ying-Jun . Measurement of the Cross Sections for Ba Isotopes. Chinese Physics C, 2002, 26(6): 589-593.
[11]	Xu Yanbing , Yuan Shuanggui , Yang Weifan , He Jianjun , Li Zongwei , Ma Taotao , Xiong Bing , Qin Zhi , Mou Wantong , Gan Zaiguo , Shi Lijun , Guo Tianrui , Chen Zhantu , Guo Junsheng . A New Heavy Neutron-rich Isotope ²³⁸Th. Chinese Physics C, 1999, 23(1): 93-95.
[12]	Gan Zaiguo , Guo Junsheng , Shi LIjun , Liu HOngye , Qin Zhi , Guo Tianrui , Lei Ziangguo , Ma Ruichang , Huang Wenxue , Yuan Shuanggui , Zhang Xueqian , Jin Genming . First Observation of ¹³¹Pm Decay. Chinese Physics C, 1998, 22(8): 673-677.
[13]	He Jianjun , Yuan Shuanggui , Yang Weifan , Li Zongwei , Ma Taotao , Fang Keging , Shen Shuifa , Gan Zaiguo , Pan Qiangyan , Chen Zhantu , Guo Tianrui , Mou Wantong , Su Denggui , Xu Yanbing , Guo Junsheng , Liu Hongye , Shi Li Lijun , Zhao Zhizheng , Ma Huifang . A New Isotope of Hafnium: ¹⁸⁶Hf. Chinese Physics C, 1998, 22(12): 1057-1060.
[14]	Yang Weifan , Yuan Shuanggui , Li Zongwei , He Jianjun , Ma Taotao , Fang Keming , Shen Shuifa , Gan Zaiguo , Pan Qiangyan , Mou Wantong , Su Denggui , Chen Zhantu , Guo Tianrui , Guo Junsheng , Liu Hongye , Shi Lijun , Zhao Zhizheng , Ma Huifang . A New Neu tron-rich Isotope:¹⁸⁶Hf. Chinese Physics C, 1997, 21(10): 958-959.
[15]	Zhao Zhizheng , Hu Zhiqinang , Yang Weifan , Li Zongwei , Sun Xiurong , Qin Zhi , Yang Yongfeng , Mu Wantong , Xie Xiujun , Zhang Li , Yuan Shuanggui , Wu Dingqing , Cai Xichen . Isotope Distribution of Ir Produced in Intermediate Energy ¹²C on ¹⁹⁷Au. Chinese Physics C, 1997, 21(5): 402-407.
[16]	Yang Weifan , Yuan Shuanggui , Mou Wantong , Zhang Xueqian , Li Zongwei , Yu Xian , Gan Zaiguo , Liu Hongye , Guo Yingxiang , Zhao Jinhua , Lei Xiangguo , Guo Junsheng , Du Yifei , Zhao Lili , Zhang Xiang . A New Heavy Neutron-Rich Isotope ²³⁹Pa. Chinese Physics C, 1995, 19(5): 479-480.
[17]	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.
[18]	WEN Wan-Xin , GU Jin-Nan . Mixed Symmetry States in Gd Isotopes. Chinese Physics C, 1992, 16(4): 379-384.
[19]	ZHANG Li , JIN Gen-Ming , ZHAO Jin-Hua , YANG Wei-Fan , YANG Yong-Feng , ZHAO Zhi-Zheng , ZHENG Ji-Wen , SUN Xiu-Rong , LI Zong-Wei , QIN Zhi , WANG Ji-Cheng , GUO Guang-Hui . New Neutron-Rich Isotope ²⁰⁸Hg. Chinese Physics C, 1992, 16(8): 767-768.
[20]	HUANG Ye-Cheng , WANG Tong-Qing , TAN Jin-Feng , GUO Bin , FAN Hong-Mei . A STATUS REPORT OF ISOLAN ——THE ON-LINE ISOTOPE SEPARATOR IN LANZHOU. Chinese Physics C, 1990, 14(1): 70-75.

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GAN Zai-Guo, FAN Hong-Mei, QIN Zhi, WU Xiao-Lei, GUO Jun-Sheng, LEI Xiang-Guo, DONG Cheng-Fu, XU Hua-Gen, CHEN Ruo-Fu, ZHANG Fu-Ming, GUO Bin, LIU Hong-Ye, WANG Hua-Lei, First Observation for Isotope ²⁶⁵Bh(Z=107)[J]. Chinese Physics C, 2004, 28(4): 332-334.

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Received: 2004-01-14
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

First Observation for Isotope ²⁶⁵Bh(Z=107)

Corresponding author: GAN Zai-Guo,

Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China2 Department of Physics,Nanjing University,Nanjing 210008,China

Received Date: 2004-01-14

Accepted Date: 1900-01-01

Available Online: 2004-04-05

Abstract: New isotope ²⁶⁵Bh(Z=107) was produced in bombardment of an ²⁴³Am target with 135MeV ²⁶Mg ions at HIRFL. Identification was made by observation of correlated α particle decays between the new isotope ²⁶⁵Bh and its ²⁶¹Db and ²⁵⁷Lr daughters with four pairs of detectors. A total of 8 correlated decay events of ²⁶⁵Bh and 4 decay events of ²⁶⁴Bh were identified. ²⁶⁵Bh decays with a 0.94+0.70-0.31s half-life by emission of α particle with an average energy of (9.24±0.05)MeV.

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First Observation for Isotope ²⁶⁵Bh(Z=107)