Origins of the Forward Emission of Complex Fragments for <SUP>40</SUP>Ar+<SUP>159</SUP>Tb Reaction at 30MeV/u

He Zhiyong; Li Zuyu; Duan Limin; Zhang Baoguo; Dai Guangxi; Jin Genming; Fu Yanbiao; Wang Hongwei

Chinese Physics C> 1998, Vol. 22> Issue(1) : 13-19

Origins of the Forward Emission of Complex Fragments for ⁴⁰Ar+¹⁵⁹Tb Reaction at 30MeV/u

Institute of Modern Physics, The Chinese Academy of Science, Lanzhou 730000

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Abstract：
Light charged particles and complex fragments have been measured at forward angles in coincidence with two fission fragments for ⁴⁰Ar+¹⁵⁹Tb reaction at 25MeV/u. These three-body coincident events were sorted as a function of the impact parameter using linear momentum transfer and total transverse momenta methods. Equilibrium statistical emissions of complex fragments from quasi-target residues accompanied by non-equilibrium mid-rapidity components were found to dominate in central collisions, while projectile fragmentations were found to dominate in peripheral collision. Three components of complex-fragments from quasi-target, quasi-projectile and mid-rapidity soures were found in mid-central collision.

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[1]	HU Rong-Jiang , WU He-Yu , ZHU Yong-Tai , JIN Gen-Ming , DUAN Li-Min , XIAO Zhi-Gang , WANG Hong-Wei , LI Zu-Yu , WANG Su-Fang , ZHANG Bao-Guo , WEI Zhi-Yong , LU Zhao-Hui , ZHU Hai-Dong , FENG Zhao-Qing , YUAN Xiao-Hua . Isospin Effect on Relative State Population Temperature in the Reactions ⁴⁰Ar+ ^112,124Sn at 30MeV/u. Chinese Physics C, 2004, 28(2): 152-157.
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[6]	GOU QuanBu , ZHU YongTai , XU HuShan , WEI ZhiYong , LI SongLin , LU Jun , ZHANG YuHu , WANG Qi , JIANG ZhongHe . Energy Spectra of Intermediate Mass Fragments Emitted in 30 MeV/u ⁴⁰Ar+¹¹⁵In Reaction. Chinese Physics C, 2000, 24(10): 927-932.
[7]	WANG JinChuan , ZHAN WenLong , GUO ZhongYan , XI HongFei , LIU Hang , ZHOU JianQun , ZHAO YouXiong . Angular and Z Distributions of the Fragments at Forward and Intermediate Angles in the Reaction of 25MeV/u ⁴⁰Ar+¹¹⁵In,⁵⁸Ni,²⁷Al. Chinese Physics C, 2000, 24(1): 41-48.
[8]	WANG HongWei , LI ZuYu , HE ZhiYong , DUAN LiMin , ZHANG BaoGuo , FU YanBiao , JIN GenMing , WU HeYu , DAI GuangXi . Space-Time Evolution of Projectile-Like Fragment Emission for ⁴⁰Ar +^natAg Reaction at 30MeV/u. Chinese Physics C, 2000, 24(1): 35-40.
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[11]	Li Zuyu , Wang Hongwei , He Zhiyong , Duan Limin , Zhang Baoguo , Dai Guangxi , Fu Yanbiao , Jin Genming , Wu Heyu . Origins of Intermediate Mass Fragments for ⁴⁰Ar+^natAg Reaction at 30 MeV/u. Chinese Physics C, 1999, 23(8): 753-759.
[12]	Dai Guangxi , He Zhiyong , Fu Yanbiao , Duan Limin , Li Zuyu , Zhang Baoguo , Liu Guoxing , Wu Heyu . Comparison Between Hot Nuclei Temperature Values Deduced by Two Methods in ⁴⁰Ar+¹⁵⁹Tb and ^natAg Reactions at 30MeV/u. Chinese Physics C, 1999, 23(3): 223-230.
[13]	Lin Yuangen , Zhan Wenlong , Guo Zhongyan , Zhou Jianqun , Zhao Youxiong , Liu Guanhua , Wang Jinchuan , Luo Yongfeng , Lei Huaihong , Qi Zhong , Zhang Wansheng , Qin Lijun . Study of Isotopic Distributions of the Fragments from the 25MeV/u ⁴⁰Ar Induced Reactions. Chinese Physics C, 1998, 22(5): 393-397.
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He Zhiyong, Li Zuyu, Duan Limin, Zhang Baoguo, Dai Guangxi, Jin Genming, Fu Yanbiao and Wang Hongwei. Origins of the Forward Emission of Complex Fragments for ⁴⁰Ar+¹⁵⁹Tb Reaction at 30MeV/u[J]. Chinese Physics C, 1998, 22(1): 13-19.

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Received: 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

Origins of the Forward Emission of Complex Fragments for ⁴⁰Ar+¹⁵⁹Tb Reaction at 30MeV/u

Corresponding author: He Zhiyong,

Institute of Modern Physics, The Chinese Academy of Science, Lanzhou 730000

Received Date: 1900-01-01

Accepted Date: 1900-01-01

Available Online: 1998-01-05

Abstract: Light charged particles and complex fragments have been measured at forward angles in coincidence with two fission fragments for ⁴⁰Ar+¹⁵⁹Tb reaction at 25MeV/u. These three-body coincident events were sorted as a function of the impact parameter using linear momentum transfer and total transverse momenta methods. Equilibrium statistical emissions of complex fragments from quasi-target residues accompanied by non-equilibrium mid-rapidity components were found to dominate in central collisions, while projectile fragmentations were found to dominate in peripheral collision. Three components of complex-fragments from quasi-target, quasi-projectile and mid-rapidity soures were found in mid-central collision.

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Origins of the Forward Emission of Complex Fragments for ⁴⁰Ar+¹⁵⁹Tb Reaction at 30MeV/u

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Origins of the Forward Emission of Complex Fragments for ⁴⁰Ar+¹⁵⁹Tb Reaction at 30MeV/u

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Origins of the Forward Emission of Complex Fragments for 40Ar+159Tb Reaction at 30MeV/u

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Origins of the Forward Emission of Complex Fragments for 40Ar+159Tb Reaction at 30MeV/u

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Origins of the Forward Emission of Complex Fragments for ⁴⁰Ar+¹⁵⁹Tb Reaction at 30MeV/u

Origins of the Forward Emission of Complex Fragments for ⁴⁰Ar+¹⁵⁹Tb Reaction at 30MeV/u