Angular and Z Distributions of the Fragments at Forward and Intermediate Angles in the Reaction of 25MeV/u 40Ar+115In,58Ni,27Al

WANG JinChuan; ZHAN WenLong; GUO ZhongYan; XI HongFei; LIU Hang; ZHOU JianQun; ZHAO YouXiong

Chinese Physics C> 2000, Vol. 24> Issue(1) : 41-48

Angular and Z Distributions of the Fragments at Forward and Intermediate Angles in the Reaction of 25MeV/u ⁴⁰Ar+¹¹⁵In,⁵⁸Ni,²⁷Al

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

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Abstract：
The angular & Z distributions of foe fragments emitted in the forward and intermediary angles are measured at the reaction of 25 MeV/u ⁴⁰Ar+¹¹⁵In,⁵⁸Ni,²⁷Al. Their characteristics are investigated based on the model of Modified Qantum Molecular Dynamics (MQMD). Generally, the theoretical calculations are in good agreement with the experiment data. But in the forward angles the yield of the fragments is underestimated by MQMD model while in the case of the intermediate angle region, the calculation is higher than the experiment data in some degree for the fragments whose charge numbers are in the vicinity of the proiectile. The angular & charge distributions of the fragments are also compared with the statistical model of GEMINI. The results turn out to be that a small proportion of the statistical evaporation component exists in the forward angles while in the intermediate angle region, this component increases to some extent. However, its ratio is still small. It is found that the equilibrium evaporation component decreases gradually when the Z of the fragments becomes smaller.

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[1]

HE ZhiYong et al. High Energy Physics and 　Nuclear Physics(in Chinese), 1998, 22(1): 13(贺智勇等.高能物理与核物理,1998,22(1):13)2 QIAN Xing et al. High Energy Phys. and Nucl. Phys. (in Chinese), 1996, 20(4):304(钱兴等.高能物理与核物理,1996,20(4):304) 3 JIANG DongXing et al. Chinese Journal of Nucl. Phys., 1995, 17:223 4 LI ZuYu et al. High Energy Phys. and Nucl. Phys. (in Chinese), 1999, 23(8):753(李祖玉等.高能物理与核物理,1999,23(8):753)5 LIN YuanGen et al. Acta Physica Sinica (in Chinese), 1998, 47:564(林源根等.物理学报,1998,47:564)6 WANG JinChuan et al. Investigation of Fragment Emission at the Forward and intermediate Angles in the Reaction of 25MeV / u 4o Ar +,115 In, Acta Physica Sinica (in Chinese), to be Published(王金川等.25MeV/u40　Ar+115　In反应中前中角区碎片发射研究,物理学报,待发表)7 Hartnack Ch et al. Eur. Phys. J., 1998, Al: 151 8 ZHAO YouXiong et al. NuCl. Instr. Meth., 1995, A355:464 9 GUO ZhongYan et al. High Energy Physics and Nuclear Physics, 1995, 19(4):333 10 WANG JinChuan et al. Nucl. Instr. Meth., 1996, A368:47311 LIU hang et al. Z. Phys., 1996, A354:3ll12 Aichelin J. Phys. Rep., 1991, 202:233 13 Ngo C et al. Nucl. Phys., 1989, A499:148 14 Kanada–Enyo Yoshiko. KUNS, 1991, 1271 15 Horiuchi H. Symp. On Heavy ion Phys. and APPlication, Lanzhou, China Oct. 1990, 25. 16 WANG JinChuan et al. The Dynamical Aspects of the Fragments in the Reaction of 4o Ar+ 58 Ni at Intermediate Energy Region, Science in China (Series A, in Chinese), to be published(王金川等.中能区40Ar+58Ni反应的碎片动力学性质研究,中国科学(A辑),待发表)17 Wada R et al. Reaction Mechanism in Fend Energy Domain. In: Pripring of Cyclotron Institute, Texas A M Univ. No. 96–05. 1996. 1–518 Jolinston H et al. COmparison of Z Distributions From the Reaction 4oCa + 58 Fe at E / A = 33, 45 MeVWith the Prediction Made by QMD, BUU/ GEMINI. In: Cyclotron Institute Texas AM Univ. Ed. Progressin Researeh. Texas: 1996. 44–4619 SA BenHao et al. Phys. Rev., 1993, C48:628 20 Bass R. Phys. Rev. Lett., 1977, 39:265

[1]	MING Zhao-Yu , ZHANG Feng-Shou , CHEN Lie-Wen , ZHU Zhi-Yuan . Radial Expansion Flow in Reactions of ⁴⁰Ca+⁵⁸Fe and ⁴⁰Ca+⁵⁸Ni. Chinese Physics C, 2001, 25(6): 549-554.
[2]	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.
[3]	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.
[4]	Zheng Jiwen , Wu Enjiu , Xiao Zhigang , Zhang Chun , Yin Shuzhi , Wang Sufang , Jin Genming , Tan Jilian , Jin Weiyang , Song Mingtao , Li Zuyu , Wu Heyu , He Zhiyong , Yin Xu , Peng Xinping , Jiang Dongxing , Qian Xing . Investigation of Fission Properties in the Reaction 25MeV/u ⁴⁰Ar+²⁰⁹Bi. Chinese Physics C, 1999, 23(5): 409-416.
[5]	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.
[6]	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.
[7]	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.
[8]	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.
[9]	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.
[10]	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.
[11]	Ye Wei , Shen Wenqing , Ma Yugang , Feng Jun . Azimuthal Distribution and Azimuthal Correlation of the Particles in 10.6MeV/u ⁸⁴Kr+²⁷Al Collision. Chinese Physics C, 1997, 21(1): 1-7.
[12]	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.
[13]	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.
[14]	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.
[15]	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.
[16]	Tang Guoyou , Bai Xinhua , Shi Zhaomin , Chen Jinxiang . Measurement of Angular Distribution and Cross Section For ⁵⁸Ni(n,α) ⁵⁵Fe Reaction at 5.1 MeV. Chinese Physics C, 1995, 19(3): 223-228.
[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 State and Extraction of Emission Temperature in 25MeV/u ⁴⁰Ar+¹⁹⁷Au. Chinese Physics C, 1995, 19(5): 393-397.
[18]	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.
[19]	HU Xiao-Qing , ZHU Yong-Tai , SHEN Wen-Qing , LI Song-Lin , ZHAN Wen-Long , XI Hong-Fei , ZHU Xiang , ZHANG Zhen . Study on the Correlation between Projectile-Like Fragments And α-Particles in ²⁰Ne (14.7,19.2MeV/u)+⁵⁸Ni Reactions. Chinese Physics C, 1992, 16(3): 250-255.
[20]	SHEN Wen-Qing , YIN Shu-Lan , GUO Zhong-Yan , ZHAN Wen-Long , ZHU Yong-Tai , JIN Gen-Ming , QIAO Wei-Min , WU En-Jiu , JIANG Cheng-Lie . MEASURMENT OF PROJECTILE-LIKE FRAGMENTS PRODUCED BY 80.6MeV¹⁶O ON ²⁷Al. Chinese Physics C, 1985, 9(3): 332-340.

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WANG JinChuan, ZHAN WenLong, GUO ZhongYan, XI HongFei, LIU Hang, ZHOU JianQun and ZHAO YouXiong. Angular and Z Distributions of the Fragments at Forward and Intermediate Angles in the Reaction of 25MeV/u ⁴⁰Ar+¹¹⁵In,⁵⁸Ni,²⁷Al[J]. Chinese Physics C, 2000, 24(1): 41-48.

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Received: 1998-11-25
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

Angular and Z Distributions of the Fragments at Forward and Intermediate Angles in the Reaction of 25MeV/u ⁴⁰Ar+¹¹⁵In,⁵⁸Ni,²⁷Al

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Angular and Z Distributions of the Fragments at Forward and Intermediate Angles in the Reaction of 25MeV/u ⁴⁰Ar+¹¹⁵In,⁵⁸Ni,²⁷Al

Corresponding author: WANG JinChuan,

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