The Angular Distributions of intermediate Mass Fragments Emittsd in 30 MeV/u 40Ar+58,64Ni and 115In Reactions

Gou Quanbu; Zhu Yongtai; Xu Hushan; Wei Zhiyong; Lu Jun; Zhang Yuhu; Wang Qi; Li Songlin; Wu Zhongli

Chinese Physics C> 1999, Vol. 23> Issue(4) : 328-333

The Angular Distributions of intermediate Mass Fragments Emittsd in 30 MeV/u ⁴⁰Ar+^58,64Ni and ¹¹⁵In Reactions

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

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Abstract：
The angular distributions of intermediate mass fragments with Z=3-19 emitted in 30 MeV/u ⁴⁰Ar+^58,64Ni and ¹¹⁵In reactions over an angular range of 5°—140°have been measured.Exponential distribution function: dσ/dΩ=N·exp(-θ/a) was used tO fit the measured angular distributions.We have extracted the decay factor a that can be connected with the interaction time τ, and the factor N that is related to the intensity of the emission source.The relationships of a(Z) with Z and N(Z) with Z for different reaction systems and different angular ranges have been discussed. The dependence of angular distributions on isospin and the symmetry of reaction system have also been discussed.

References

[1]

Xu Hushan et al.Nucl Sci.and Tech., 1996, 7: 198–201 2 Zhu Y T et al. Journal of Qingdao University(Quarterly)(in Chinese), 1997, 10:35—37(诸永泰等.青岛大学学报(自然科学版),1997,10:35—37)3 Xu Hushan et al. Chin.Phys.Lett,1997,14:413–416 4 Liu G X et al. High Energy Physics and Nuclear Physics(in Chinese),1997,21:777—782(刘国兴等.高能物理与核物理,1997,21:777—782)5 Guerreau D. Nucl. Phys., 1985, A447:37c—66c6 Qian Tao et al.Chin.Phys.Lett.,1998,15:255–2577 Kiss A et al.Nucl. Phys., 1989, A499:131—1478 Qan X et al.High Energy Physics and Nuclear Physics(in Chinese),1996,20:304—309(钱兴等.高能物理与核物理,1996,20:304—309)9 Wu H Y et al. Nucl.Phys.,1997,A617:385–394 10 Sangster T C et al、Phys. Rev., 1992, C46: 1404–141511 Royer G et al. Nucl. Phys., 1987, A466:139—156 12 Borderie B et al. Z. Phys., 1984, A318:315–321 13 Borderie B et al. Phys. Lett, 1988, B205:26—29 14 Hirsh A S et al. Phys. Rev., 1984, C29:508–52515 Rami F et al. Z. Phys., 1987, A327:207—21616 Sosin Z et al. Nucl. Phys., 1994, A574:474–500 17 Wile J L et al. Phys. Rev., 1992, C45:2300–2319

[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]	WANG Jin-Chuan , ZHAN Wen-Long , GUO Zhong-Yan , XI Hong-Fei , ZHOU Jian-Qun , ZHAO You-Xiong . Azimuthal Correlations of Fragments with Light Charged Particles in Reaction of 25MeV/u ⁴⁰Ar+¹¹⁵In. Chinese Physics C, 2001, 25(1): 16-22.
[3]	WANG Jin-Chuan , ZHAN Wen-Long , GUO Zhong-Yan , XI Hong-Fei , ZHOU Jian-Qun , ZHAO You-Xiong . Energy Correlations between Fragments and Light Charged Particles in Reaction of 25MeV/u ⁴⁰Ar+¹¹⁵In. Chinese Physics C, 2001, 25(2): 115-120.
[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]	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.
[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 , 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.
[8]	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.
[9]	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.
[10]	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.
[11]	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.
[12]	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.
[13]	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.
[14]	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.
[15]	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.
[16]	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.
[17]	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.
[18]	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.
[19]	Yin Shuzhi , Zhu Yongtai , Zhan Wenlong , Guo Zhongyan , Hu Xiaoqing , Xi Hongfei , Liu Guanhua , Zhou Jianqun , Fan Enjie , Feng Enpu , Wang Xiaoqiu . Complex Fragments Emitted in Reactions of 46．7MeV/u ¹²C on ¹⁹⁷Au,¹¹⁵In and ⁵⁸Ni. Chinese Physics C, 1994, 18(8): 673-679.
[20]	ZHAO You-Xiong , GUO Zhong-Yan , ZHU Yong-Tai , ZHAN Wen-Long , HU Xiao-Qing , XI Hong-Fei , LIU Guan-Hua , ZHOU Jian-Qun , FENG En-Pu , YIN Shu-Zhi , WEI Zhi-Yong , Fan En-Jie , MA Yu-Gang . The Study of α Emission Induced by 46.7MeV/u ¹²C on ⁵⁸Ni、¹¹⁵In and ¹⁹⁷Au. Chinese Physics C, 1992, 16(11): 1022-1029.

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Gou Quanbu, Zhu Yongtai, Xu Hushan, Wei Zhiyong, Lu Jun, Zhang Yuhu, Wang Qi, Li Songlin and Wu Zhongli. The Angular Distributions of intermediate Mass Fragments Emittsd in 30 MeV/u ⁴⁰Ar+^58,64Ni and ¹¹⁵In Reactions[J]. Chinese Physics C, 1999, 23(4): 328-333.

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Received: 1998-05-25
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

The Angular Distributions of intermediate Mass Fragments Emittsd in 30 MeV/u ⁴⁰Ar+^58,64Ni and ¹¹⁵In Reactions

Corresponding author: Gou Quanbu,

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

Received Date: 1998-05-25

Accepted Date: 1900-01-01

Available Online: 1999-04-05

Abstract: The angular distributions of intermediate mass fragments with Z=3-19 emitted in 30 MeV/u ⁴⁰Ar+^58,64Ni and ¹¹⁵In reactions over an angular range of 5°—140°have been measured.Exponential distribution function: dσ/dΩ=N·exp(-θ/a) was used tO fit the measured angular distributions.We have extracted the decay factor a that can be connected with the interaction time τ, and the factor N that is related to the intensity of the emission source.The relationships of a(Z) with Z and N(Z) with Z for different reaction systems and different angular ranges have been discussed. The dependence of angular distributions on isospin and the symmetry of reaction system have also been discussed.

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The Angular Distributions of intermediate Mass Fragments Emittsd in 30 MeV/u ⁴⁰Ar+^58,64Ni and ¹¹⁵In Reactions

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The Angular Distributions of intermediate Mass Fragments Emittsd in 30 MeV/u ⁴⁰Ar+^58,64Ni and ¹¹⁵In Reactions

Corresponding author: Gou Quanbu,

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