Excitation Energy and Temperature of Compound Nuclei in the Reaction of 35MeV/u <SUP>40</SUP>Ar+<SUP>197</SUP>Au

DUAN Li-Min; WU He-Yu; JIN Gen-Ming; WANG Su-Fang; LI Zu-Yu; WEI Zhi-Yong; ZHANG Bao-Guo; WANG Hong-Wei; XIAO Zhi-Gang; LIU Yong-Ying; HU Pei-Gang; LU Zhao-Hui; TIAN Wen-Dong; GOU Quan-Bu

Chinese Physics C> 2003, Vol. 27> Issue(2) : 118-123

Excitation Energy and Temperature of Compound Nuclei in the Reaction of 35MeV/u ⁴⁰Ar+¹⁹⁷Au

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

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Abstract：
The fission fragments in the reaction of ⁴⁰Ar+¹⁹⁷Au have been measured coincidently with light charged particles at 35MeV/u by using large area position sensitive detectors and Si-detectors. The velocities of the fissioning compounds are deduced based on the fragments and the excitation energies of the compounds calculated with a hypothesis of massive transfer and taking into account the influence of pre-equilibrium emission of light particles. As the same time,the temperatures of the compounds are extracted by using the energy spectra of the backward light charged particles measured coincidently with fission fragments. The temperature-excitation energy curve does not present the behaviour predicted by the theories.

References

[1]

. Bonche P ,Levit S ,Vautherin D .Nucl.Phys.,1985,A436:2652. Gross D H E .Prog.Part.Nucl.Phys.,1993,30:1553. Bondorf J B et al.Nucl.Phys.,1995,A444:4604. JIN GenMing.Nuclear Physics Review,1998,15(4):2275. Pochodzalla J et al.Phys.Rev.Lett.,1995,75:10406. MA Y G ,Siwe k A ,Peter J et al.Phys.Lett.,1997,B390:417. DUAN LiMin,LI ZuYu,JIN GenMing et al.High Energy Phys.and Nucl.Phys.,1995,19:2158. Siwek A ,Durand D ,Gulminelli F .J Peter Phys.Rev.1998,C57:25079. DUAN LiMin.Study on Reaction Mechanisms and Highly Excited Nuclei Properties in 40Ar+159Tb/197Au Reactions at 35 AMeV .Ph.Dthesis.Institute of Modern Physics,CAS 2002(in Chinese)(段利敏.35A·MeV40Ar+159Tb/197Au反应中高激发核性质与反应机制研究.博士论文,中国科学院近代物理研究所,2002)10. Hilscher D ,Tossner H ,Gamp A et al.Phys.Rev.,1987,C36:20811. Borderie B ,Rivet M F ,Cabot C et al.Z .Phys.,1984,A318:31512. Wada R ,Fabris D ,Hagel K et al.Phys.Rev.,1989,C39:49713. Benrachi F ,Chambon B ,Cheynis B et al.Phys.Rev.,1993,C48:234014. DUAN LiMin,WANG SuFang,ZHANG BaoGuo et al.HEP NP ,1998,22:780(in Chinese)(段利敏,王素芳,张保国等.高能物理与核物理,1998,22:780)15. GUI M ,Hagel K ,Wada R et al.Phys.Rev.,1993,C48:179416. HE ZhiYong,DUAN LiMin,JIN GenMing et al.Nucl.Phys.1997,A620:21417. HE ZhiYong,JIN GenMing,LI ZuYu et al.Chinese Physics Letter,1996,V13:16818. WU H Y ,JIN G M ,LI Z Y et al.Nucl.Phys.,1997,A617:38519. Nebbia G ,Hagel K ,Fabris D et al.Phys.Lett.,1986,B176:2020. Hagel K ,Fabris D ,Gonthier P et al.Nucl.Phys.,1988,A486:429

[1]	HU Rong-Jiang , XIAO Zhi-Gang , WU He-Yu , DUAN Li-Min , WANG Hong-Wei , YUAN Xiao-Hua , JIN Gen-Ming , ZHU Yong-Tai , LI Zu-Yu , WANG Su-Fang , XU Hu-Shan , ZHANG Bao-Guo , WEI Zhi-Yong , FENG Zhao-Qing , FU Fen . Entrance Channel Dependence of the Correlation Function of IMFs in ³⁶Ar+^112,124Sn at 35MeV/u. Chinese Physics C, 2007, 31(4): 350-356.
[2]	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.
[3]	XIAO Zhi-Gang , JIN Gen-Ming , WU He-Yu , HU Rong-Jiang , WANG Hong-Wei , LI Zu-Yu , DUAN Li-Min , WANG Su-Fang , WEI Zhi-Yong , ZHANG Bao-Guo , LIU Jian-Ye , ZHU Yong-Tai . Isotropic Distribution of the Projectile-Like Products in the Reaction ³⁶Ar+¹²⁴Sn at 35MeV/u. Chinese Physics C, 2003, 27(6): 493-497.
[4]	XIAO Zhi-Gang , WU He-Yu , LI Zu-Yu , JIN Gen-Ming , WANG Hong-Wei , DUAN Li-Min , ZHANG Bao-Guo , HU Rong-Jiang , WEI Zhi-Yong , LIU Yong-Ying , WANG Su-Fang , LU Zhao-Hui , ZHU Yong-Tai , ZHU Hai-Dong . Relaxation of Isospin Degree of Freedom in the Reactions ³⁶Ar+^112,124Sn at 35MeV/u. Chinese Physics C, 2001, 25(6): 494-499.
[5]	WEI Zhi-Yong , DUAN Li-Min , JIN Gen-Ming , WU He-Yu , LI Zu-Yu , SHEN Wen-Qing , XI Hong-Fei , ZHU Yong-Tai , ZHANG Bao-Guo , WANG Hong-Wei , XIAO Zhi-Gang , LIU Yong-Ying , , . Freeze-Out Density of the 35MeV/u ⁴⁰Ar+¹⁹⁷Au Reaction. Chinese Physics C, 2001, 25(9): 839-844.
[6]	LIU ChangLong , JIN YunFan , ZHU ZhiYong , SUN YouMei , HOU MingDong , WANG ZhiGuang , WANG YanBin , ZHANG ChongHong , CHEN XiaoXi , LIU Jie , LI BaoQuan . Infrared Absorption Study of Effects in Semicrystalline Polyethylene Terephthalate Films Induced by 35MeV/u Ar Ions. Chinese Physics C, 2000, 24(4): 352-358.
[7]	WEI ZhiYong , LI ZuYu , LIU YongYing , DUAN LiMin , WU HeYu , ZHANG BaoGuo , WANG HongWei , WANG SuFang , XIAO ZhiGang , LU ZhaoHui , JIN GenMing , ZHU YongTai , HU RongJiang , ZHU HaiDong . Statistical Emission of Hot Nuclei in the 35MeV/u ⁴⁰Ar+¹⁹⁷Au Nuclear Reaction. Chinese Physics C, 2000, 24(12): 1131-1136.
[8]	Wu Heyu , Xiao Zhigang , Li Zuyu , Wang Hpmgweo , Duan Limin , Zhang Baoguo , Liu Yongying , Wang Sufang , Jin Genming , Xiao Guoqing , Guo Zhongyan , Zhu Yongtai . Isospin Effect on the Emission Mechanism of Hot Nuclei in 35MeV/u ⁴⁰Ar +¹¹²Sn/¹²⁴Sn Reactions. Chinese Physics C, 1999, 23(11): 1115-1118.
[9]	Xu Hushan , Zhu Yongtai , Gou Quanbu , Wei Zhiyong , Lu Jun , Wang Qi , Li Songlin , Zhang Yuhu , Jin Genming , Wu Zhongli , Xie Yuanxiang . Temperature Parameters Extracted in ⁴⁰Ar Induced Reactions at 30MeV/u. Chinese Physics C, 1998, 22(7): 596-601.
[10]	Duan Limin , Wang Sufang , Zhang Baoguo , Wen Wanxin , Jin Genming , Zheng Jiwen , He Zhiyong , Li Zuyu , Tan Jilian , Xiao Zhigang , Wang Hongwei , WU Heyu . Excitation Energy and Temperature of Hot Nucleiin the Reaction of 25 MeV/u ⁴⁰Ar+⁹³Nb. Chinese Physics C, 1998, 22(9): 780-786.
[11]	Yin Shuzhi , Jin Weiyang , Zhang Chun , Jin Genming , Zheng Jiwen , Wu Enjiu , Tan Jilian , Li Zuyu , Wang Sufang , Song Mingtao , Wu Heyu , He Zhiyong , Jiang Dongxing , Qian Xing . Temperatures and Excitation Energies of Hot Nuclei in Reactions of ⁴⁰Ar+^natAg,²⁰⁹Bi at MeV/u. Chinese Physics C, 1997, 21(8): 680-685.
[12]	He Zhiyong , Duan Limin , Li Zuyu , Jin Genming , Luo Qingzheng , Wu Heyu , Zhang Baoguo , Wen Wanxin , Qi Yujin , Dang Bingrong , Dai Guangxi . Emission-Time Measurements of Light Particles from ⁴⁰Ar+¹⁹⁷Au Collisions in Intermediate Energies. Chinese Physics C, 1996, 20(S1): 3-7.
[13]	He Zhiyong , Li Zuyu , Duan Limin , Jin Genming , Wu Heyu , Dai Guangxi , Li Zhankui , Zhang Baoguo , Wen Wanxin , Qi Yujin . In-Plane and Out-of-Plane Emission of Light Charged Particles From ⁴⁰Ar+¹⁹⁷Au Collisions at 25MeV/u. Chinese Physics C, 1996, 20(5): 394-399.
[14]	He Zhiyong , Li Zuyu , Duan Limin , Jin Genming , Wu Heyu , Dai Guangxi , Li Zhankui , Zhang Baoguo , Wen Wanxin , Qi Yujin . In-plane and Out-of-plane Emission of Light Charged Particle from ⁴⁰Ar+¹⁹⁷Au Collisions at 25 MeV/u. Chinese Physics C, 1996, 20(S2): 129-134.
[15]	He Zhiyong , Duan Limin , Li Zuyu , Jin Genming , Luo Qingzheng , Wu Heyu , Zhang Baoguo , Wen Wanxin , Qi Yujin , Dang Bingrong , Dai Guangxi . Emission Time Measurements of Light Particles from ⁴⁰Ar+¹⁹⁷Au Collisions in Intermediate Energies. Chinese Physics C, 1996, 20(1): 8-12.
[16]	Liu Guoxing , Cheng Keliang , Yu Xian , Zheng Jiwen , Jin Weiyang , Sun Tongyu , Wu Dingqing , Zhao Lili , Zhang Xiang , Yin Xinmin , Qin Zhi . Fragment Angular Distributions of the 600 MeV ⁴⁰)Ar+¹⁹⁷ Au Reaction. Chinese Physics C, 1995, 19(4): 305-309.
[17]	Duan Limin , Li Zuyu , Jin Genming , He Zhiyong , Luo Qingzheng , Wu Heyu , Zhang Baoguo , Qi Yujin , Wen Wanxin , Dang Bingrong , Dai Guangxi . Relative Population of States and Extraction of Emission Temperature in 25 MeV/u ⁴⁰Ar+¹⁹⁷Au. Chinese Physics C, 1995, 19(S3): 215-220.
[18]	Duan Limin , Li Zuyu , Jin Genming , He Zhiyong , Luo Qingzheng , Wu Heyu , Zhang Baoguo , Qi Yujin , Wen Wanxin , Dang Bingrong , Dai Guangxi . Relative Population of State and Extraction of Emission Temperature in 25MeV/u ⁴⁰Ar+¹⁹⁷Au. Chinese Physics C, 1995, 19(5): 393-397.
[19]	Wu Heyu , Jin Genming , Li Zuyu , Dai Guangxi , Qi Yujin , Luo Qingzheng , He Zhiyong , Duan Limin , Zhang Baoguo , Dang Bingrong , Wen Wanxin . Relation Between Temperature and Excitation Energy of Hot Nuclei in the Reaction of ⁴⁰Ar＋¹⁹⁷Au at 25MeV/u. Chinese Physics C, 1995, 19(7): 591-597.
[20]	Dai Guangxi , Wu Heyu , Jin Genming , Qi Yujin , Li Zuyu , Duan Limin , He Zhiyong , Luo Qingzeng , Wen Wanxin , Zhang Baoguo , Dang Bingrong , Cai Wei . Ternary Fission Fragments Correlation Measurement in Reactions of ⁴⁰Ar+¹⁵⁹Tb,¹⁹⁷Au,²⁰⁹Bi at 25MeV/u. Chinese Physics C, 1994, 18(S1): 20-27.

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DUAN Li-Min, WU He-Yu, JIN Gen-Ming, WANG Su-Fang, LI Zu-Yu, WEI Zhi-Yong, ZHANG Bao-Guo, WANG Hong-Wei, XIAO Zhi-Gang, LIU Yong-Ying, HU Pei-Gang, LU Zhao-Hui, TIAN Wen-Dong and GOU Quan-Bu. Excitation Energy and Temperature of Compound Nuclei in the Reaction of 35MeV/u ⁴⁰Ar+¹⁹⁷Au[J]. Chinese Physics C, 2003, 27(2): 118-123.

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Received: 2002-03-11
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沈阳化工大学材料科学与工程学院沈阳 110142

Excitation Energy and Temperature of Compound Nuclei in the Reaction of 35MeV/u ⁴⁰Ar+¹⁹⁷Au

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Excitation Energy and Temperature of Compound Nuclei in the Reaction of 35MeV/u ⁴⁰Ar+¹⁹⁷Au

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Excitation Energy and Temperature of Compound Nuclei in the Reaction of 35MeV/u 40Ar+197Au

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通讯作者: 陈斌, bchen63@163.com

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Excitation Energy and Temperature of Compound Nuclei in the Reaction of 35MeV/u 40Ar+197Au

Corresponding author: DUAN Li-Min,

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Excitation Energy and Temperature of Compound Nuclei in the Reaction of 35MeV/u ⁴⁰Ar+¹⁹⁷Au

Excitation Energy and Temperature of Compound Nuclei in the Reaction of 35MeV/u ⁴⁰Ar+¹⁹⁷Au