Comparison Between Hot Nuclei Temperature Values Deduced by Two Methods in 40Ar+159Tb and natAg Reactions at 30MeV/u

Dai Guangxi; He Zhiyong; Fu Yanbiao; Duan Limin; Li Zuyu; Zhang Baoguo; Liu Guoxing; Wu Heyu

Chinese Physics C> 1999, Vol. 23> Issue(3) : 223-230

Comparison Between Hot Nuclei Temperature Values Deduced by Two Methods in ⁴⁰Ar+¹⁵⁹Tb and ^natAg Reactions at 30MeV/u

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

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The temperature of hot nuclei was simultaneously deduced with double isotope ratios and with slope method at angle of 110°in ⁴⁰Ar+¹⁵⁹Tb and natAg reactions at 30 MeV/u. The values of isotopic temperature for different ratios, such as ^1,2H/^3,4He,^2.3H/^3,4He and ^6,7Li/^3,4He were all the same, i.e. 4.6 MeV. The slope temperature values were different for various particles or complex fragmenL The slope temperature for α-particle or panicles with mass number less than 4 was normal,however, for the heavier fragments the slope temperatures were higher than limiting temperature T_lim.It may be expected because the heavier fragments were emitted at the early stage of the formation of compound nuclei or because of Coulomb instability.For larger slope temperature than T_lim its angular dependence was tested too.

References

[1]

Levit S,Bonche P Nucl.Phys.,1983,A437:426–442 2 Horvath A,Deak E KiSS F et al.Phys.Rev.,1994,C49:1012–1015 3 Vient F. Badald A,Barbera R et al.NucL Phys., 1994, A571:588一6164 Albergo S,Costa S,Costanzo E.Noveto Ciminto,1985,A89:1–285 Kolomiets A,Ramakrishnan E,Janston H et al. Phys. Rev., 1996,C54:R472–R4766 Tsang M B,Lynch W G, Xi H. Phys.Rev Lett, 1997, 78:3836–38397 Huang J,Xi H.Lynch W G et al.Phys.Rev LetL,1997,78:1648–1651 8 Xi H Huang J,Lynch W G et al.MSUCL,1997,1055:1–15 9 Awes T C,Poggi G, Delbke C K et al.Phys. Rev,1981,C24:89–110 10 Wada R R, Fabris D, Hagel K et al.Phys.Rev,1989,C39:497–515

[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.
[2]	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.
[3]	XIAO Zhi-Gang , WU He-Yu , JIN Gen-Ming , WANG Hong-Wei , HU Rong-Jiang , LIU Yong-Ying , LI Zu-Yu , DUAN Li-Min , ZHANG Bao-Guo , WEI Zhi-Yong , WANG Su-Fang , ZHU Yong-Tai , ZHU Hai-Dong , LU Zhao-Hui . Isotope Ratios of Light Charged Particles and Temperature in the Reactions 30MeV/u⁴⁰Ar+^112,124Sn. Chinese Physics C, 2001, 25(11): 1071-1076.
[4]	XIAO Zhi-Gang , WU He-Yu , WANG Hong-Wei , LI Zu-Yu , JIN Gen-Ming , 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 . Isospin Effect on the Slope Temperature at Backward Angles in the Reactions 30MeV/u ⁴⁰Ar+^112,124Sn. Chinese Physics C, 2001, 25(7): 643-650.
[5]	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.
[6]	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.
[7]	Gou Quanbu , Zhu Yongtai , Xu Hushan , Wei Zhiyong , Lu Jun , Zhang Yuhu , Wang Qi , Li Songlin , Wu Zhongli . The Angular Distributions of intermediate Mass Fragments Emittsd in 30 MeV/u ⁴⁰Ar+^58,64Ni and ¹¹⁵In Reactions. Chinese Physics C, 1999, 23(4): 328-333.
[8]	Gou Quanbu , Zhu Yongtai , Xu Hushan , Wei Zhiyong , Lu Jun , Zhang Yuhu , Wang Qi , Li Songlin , Wu Zhongli . Element Distributions of Intermediate Mass Fragments Emitted in 30 MeV/u ⁴⁰Ar+^58,64Ni and ¹¹⁵In Reactions. Chinese Physics C, 1999, 23(6): 512-517.
[9]	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.
[10]	Zhang Baoguo , Wang Sufang , Duan Limin , Wen Wanxin , Jin Genming , Zheng Jiwen , Li Zuyu , He Zhiyong , Xiao Zhigang , Wang Hongwei . The Study of Giant Dipole Resonance in Hot Nuclei in the ⁴⁰Ar+⁹³Nb Reaction at 25MeV/u. Chinese Physics C, 1998, 22(9): 795-802.
[11]	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.
[12]	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.
[13]	Li Zuyu , Wang Hongwei , He Zhiyong , Dun Limin , Zhang Baoguo , Dai Guangxi , Fu Yanbiao , Jin Genming . Time Scsle for Emission of Intermediate Mass Fragments in E/A=30MeV ⁴⁰Ar+^natAg Reaction. Chinese Physics C, 1998, 22(8): 684-689.
[14]	He Zhiyong , Li Zuyu , Duan Limin , Zhang Baoguo , Jin Genming , Dai guangxi , Wang Hongwei , Fu Yanbiao . Space-Time Evolution During Emission of Intermediate Mass Fragmentform ⁴⁰Ar+¹⁵⁹Tb Reaction at 30 MeV/u. Chinese Physics C, 1998, 22(8): 678-683.
[15]	He Zhiyong , Li Zuyu , Duan Limin , Zhang Baoguo , Dai Guangxi , Jin Genming , Fu Yanbiao , Wang Hongwei . Origins of the Forward Emission of Complex Fragments for ⁴⁰Ar+¹⁵⁹Tb Reaction at 30MeV/u. Chinese Physics C, 1998, 22(1): 13-19.
[16]	Yin Shuzhi , Jin Weiyang , Zhang Chun , Jin Genming , Zheng Jiwen , Wu Enjiu , Tan Jilian , Li Zuyu , Wang Sufang , Song Mingtao , Wu Heye , He Zhiyong , Jiang Dongxing , Qian Xing . Temperatures and Excitation Energies of Hot Nuclei in the Reactions of ⁴⁰Ar+^natAg, ²⁰⁹Bi at 25 MeV/u. Chinese Physics C, 1997, 21(S3): 29-34.
[17]	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.
[18]	Qian Xing , Jiang Dongxing , Qian Tao , Hua Hui , Lin Junsong , Wu Enjiu , Zheng Jiwen , Jin Genming , Yin Shuzhi , Tan Jilian , Jin Weiyang , Song Mingtao , Li Zuyu , He zhiyong , Wang Sufang . Evaporation of Intermediate-Mass Fragments From Hot-Nuclei in Reaction ⁴⁰Ar+¹⁵⁹Tb at 25MeV/u. Chinese Physics C, 1996, 20(4): 304-310.
[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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Dai Guangxi, He Zhiyong, Fu Yanbiao, Duan Limin, Li Zuyu, Zhang Baoguo, Liu Guoxing and Wu Heyu. Comparison Between Hot Nuclei Temperature Values Deduced by Two Methods in ⁴⁰Ar+¹⁵⁹Tb and ^natAg Reactions at 30MeV/u[J]. Chinese Physics C, 1999, 23(3): 223-230.

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Received: 1997-12-09
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

Comparison Between Hot Nuclei Temperature Values Deduced by Two Methods in ⁴⁰Ar+¹⁵⁹Tb and ^natAg Reactions at 30MeV/u

Corresponding author: Dai Guangxi,

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

Received Date: 1997-12-09

Accepted Date: 1900-01-01

Available Online: 1999-03-05

Abstract: The temperature of hot nuclei was simultaneously deduced with double isotope ratios and with slope method at angle of 110°in ⁴⁰Ar+¹⁵⁹Tb and natAg reactions at 30 MeV/u. The values of isotopic temperature for different ratios, such as ^1,2H/^3,4He,^2.3H/^3,4He and ^6,7Li/^3,4He were all the same, i.e. 4.6 MeV. The slope temperature values were different for various particles or complex fragmenL The slope temperature for α-particle or panicles with mass number less than 4 was normal,however, for the heavier fragments the slope temperatures were higher than limiting temperature T_lim.It may be expected because the heavier fragments were emitted at the early stage of the formation of compound nuclei or because of Coulomb instability.For larger slope temperature than T_lim its angular dependence was tested too.

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Comparison Between Hot Nuclei Temperature Values Deduced by Two Methods in ⁴⁰Ar+¹⁵⁹Tb and ^natAg Reactions at 30MeV/u

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Comparison Between Hot Nuclei Temperature Values Deduced by Two Methods in ⁴⁰Ar+¹⁵⁹Tb and ^natAg Reactions at 30MeV/u

Corresponding author: Dai Guangxi,

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