Isotope Ratios of Light Charged Particles and Temperature in the Reactions 30MeV/u<SUP>40</SUP>Ar+<SUP>112,124</SUP>Sn

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

Chinese Physics C> 2001, Vol. 25> Issue(11) : 1071-1076

Isotope Ratios of Light Charged Particles and Temperature in the Reactions 30MeV/u⁴⁰Ar+^112,124Sn

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

Abstract
HTML
Reference
Related

PDF

Abstract：
Coincidence measurements between residues and light charged particles (LCPs) have been made for the reactions 30MeV/u 40Ar+^112,124Sn. The LCPs were measured by 11 semi-conduct telescopes from very forward angle to backward angle. The times of flight of the residues were measured by PPACs installed concentrically around the beam at forward angle. The excitation energy of the primary hot nuclei was obtained from the velocity of residues in the frame of incomplete fusion model. The single isotope ratios, as function of observing angle and excitation energy have been studied. The ratio of ³He/⁴He and ⁶Li/⁷Li increases with angle while that of ⁶He/⁴He and ⁸Li/⁷Li decreases. The calculation of statistical theory can not reproduce the curve quantitatively, implying the existence of dynamic effect. Isospin effect of the primary hot nuclei on the single isotopic ratios is demonstrated. However, the temperature extracted from double isotope ratios is target independent.

References

[1]

. Alberg S et al.IL Nuovo Cimento,1985,A89:12. Pochadzalla J, M hlenkampT ,Rubehn T et al.Phys.Rev.Lett.,1995,75:1040—1043 3. WEI ZhiYong,ZHU YongTai.Progress in Physics,1998,18:33—45(in Chinese)(魏志勇,诸永泰.物理学进展,1998,18:33—45) 4. HU PeiGang,WU HeYu,JIN GenMing et al.High Energy Phys.and Nucl.Phys.,2000,24(9):818—822(in Chinese)(胡佩钢,吴和宇,靳根明等.高能物理与核物理,2000,24(9):818—822) 5. XI H F ,Kunde G J,Bjarki O et al.Phys.Rev.,1998,C58:R2636—R26396. Kunde G J,Gaff S ,Gelbke C K .Phys.Lett.,1998,B416:56—617. Viola V E ,Kwiatkowski K ,Friedman W A .Phys.Rev.,1999,C59:2660—2669 8. JIN GenMing.Nuclear Physics Review,1998,15(4):227—236(in Chinese)(靳根明.原子核物理评论,1998,15(4):227—236) 9. Tsang M B et al.Phys.Rev.Lett.,1997,78:3836 10. WEI ZhiYong,ZHU YongTai.High Energy Phys.and Nucl.Phys.,1997,21(7):615—620(in Chinese)(魏志勇,诸永泰.高能物理与核物理,1997,21(7):615—620)11. Yennello S J,Young B ,Yee J et al.Phys.Lett.,1994,B321:1512. Johnston H ,White T ,Winger J et al.Phys.Lett.,1996,B371:18613. XIAO ZhiGang,WU HeYu,WANG HongWei et al.High Energy Phys.and Nucl.Phys.,2001,25(7):643(in Chinese)(肖志刚,吴和宇,王宏伟等.高能物理与核物理,2001,25(7):643)14. XIAO ZhiGang,WU HeYu,LI ZuYu et al.Nuclear Electronics and Detection Technology,2001,21(5):334(in Chinese)(肖志刚,吴和宇,李祖玉等.核电子学与核探测技术,2001,21(5):334 15. WU HeYu,XIAO ZhiGang,LI ZuYu et al.High Energy Phys.and Nucl.Phys.,1999,23:1115(in Chinese)(吴和宇,肖志刚,李祖玉等.高能物理与核物理,1999,23:1115)

[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]	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 . Excitation Energy and Temperature of Compound Nuclei in the Reaction of 35MeV/u ⁴⁰Ar+¹⁹⁷Au. Chinese Physics C, 2003, 27(2): 118-123.
[4]	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.
[5]	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.
[6]	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.
[7]	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.
[8]	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.
[9]	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.
[10]	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.
[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]	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.
[14]	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.
[15]	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.
[16]	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.
[17]	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.
[18]	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.
[19]	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.
[20]	WANG Da-Yan , JIN Gen-Ming , ZHANG Li , YUE Hai-Kui , WANG Xi-Ming . INFLUENCE OF THE NEUTRON NUMBER OF TARGET NUCLEUS ON CROSS SECTIONS OF PARTICLES EMISSION IN ¹²C+^112,124Sn. Chinese Physics C, 1986, 10(1): 68-74.

Access

Get Citation

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 and LU Zhao-Hui. Isotope Ratios of Light Charged Particles and Temperature in the Reactions 30MeV/u⁴⁰Ar+^112,124Sn[J]. Chinese Physics C, 2001, 25(11): 1071-1076.

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2000-10-08
Revised: 1900-01-01

Article Metric

Article Views(3284)
PDF Downloads(608)
Cited by(0)

Policy on re-use

To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Isotope Ratios of Light Charged Particles and Temperature in the Reactions 30MeV/u⁴⁰Ar+^112,124Sn

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article

Isotope Ratios of Light Charged Particles and Temperature in the Reactions 30MeV/u⁴⁰Ar+^112,124Sn

Corresponding author: XIAO Zhi-Gang,

HTML

目录

Isotope Ratios of Light Charged Particles and Temperature in the Reactions 30MeV/u40Ar+112,124Sn

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article

Isotope Ratios of Light Charged Particles and Temperature in the Reactions 30MeV/u40Ar+112,124Sn

Corresponding author: XIAO Zhi-Gang,

HTML

目录

Isotope Ratios of Light Charged Particles and Temperature in the Reactions 30MeV/u⁴⁰Ar+^112,124Sn

Isotope Ratios of Light Charged Particles and Temperature in the Reactions 30MeV/u⁴⁰Ar+^112,124Sn