Chinese Physics C > 2000, Vol. 24 > Issue(6): 528-534

Role of Excitation Energy in Nuclear Dissociation

Shanghai Institute of Nuclear Research, The Chinese Academy of Sciences, Shanghai 201800, China2 T.D.Lee Physics Laboratory, Fudan University, Shanghai 200433, China

Abstract
HTML
Reference
Related

PDF

Abstract：
The features of thermodynamics and particle emission during the disassembly of ¹²⁹Xe are investigated as functions of temperature and freeze-out density in the framework of the lattice gas model. The calculation shows different temperature dependence of physical observables at different freeze-out density. In this case, the critical temperature at the phase transition depends strongly on the freeze-out density. However, a unique critical excitation energy is revealed in different freeze-out densities when the excitation energy is used as a variable instead of temperature. Moreover, the different behavior of particle emission with temperature stemming from different ρ _fvanishes when excitation energy replaces temperature. It indicates that the excitation energy can be seen as a basic and scalable quantity to control nuclear disassembly.

References

[1]

Pcxhc,dzalla J et al. Phys. Rev. L.ett.,1995, 75:1040[2] MA丫G et al. Phys. Ixtt,1997, B390:41[3] MA Y G et al, Phys. Rev.,1995, C51;710[4] Rertsch G F. Sciences, 1997, 277:1619; Gross D H E. Phys. Rep.,1997,279:121[5] Gross D H E et al. Rep. Prog. Phys.,1990, 53:605[6] C:ifkea M L et al. Phys. Rev. Lett. .1993, 73:1590; Elliot J H et al. Phys.1996, B381:35[7] Campi X et al. Phys. Lett.,1988 , 208: 351; Bauer W et al. Phys. Rev.,1988, 038:1297[8] SA B H, Grazs D H E. Nucl. Phys,1985, A437:643; Bondorf J I' et al. Phys. Rep.,1995, 257:133; FAI G,Randnip J. Nucl. Phys.,1982, A381:557[9] YANG C N, Lee T D. Phys. Rcv,1952, 87:410[10] PAN J . Das Cupta S. Phys. Lett.,1995, B344:29; Phys. Rev.,1996, 053:1319; Phys. Rev. Lett.,1998, 811:1182[11] SU Q M, MA Y G et al. High Ener. Phys. and Nucl. Phys. (in Chinese), 2000, 24:250 (苏前敏,马余刚等.高能物理与核物理,2000,24:250)[12] LI T ct al. Phvs. Rev. Lett.,1993, 70:1924[13] Denbigh K G, Denbigh J S. Entmpy in Relation to Uncompletc Ktxrwledge, Cambridge LJniversity Press, 1985[14] LIU Lian_Shou, WU YuanFang. Multiparticle Production in High Energy Collisions. Shanghai: Shanghai Science and Technology Press(in Chinese).1985〔刘连寿.吴元芳.高能碰撞多粒子产生.上海:上海科技出版社,1985)[15] MA Y G et al. Chin. Phys. Lett.,1999, 16:256[16] MA Y G et al. Euro. Phys. J 1999, A4:217

[1]	LIU Jian-Ye,GUO Wen-Jun,REN Zhong-Zhou,XING Yong-Zhong,ZUO Wei,LI Xi-Guo. Special Role of Neutron-Halo Structure in the Fragmentation Reactions. Chinese Physics C, 2005, 29(8): 761-765.
[2]	V.K.B.Kota. Random Interactions in Nuclei and Extension of 0⁺Dominance in Ground States to Irreps of Group Symmetries. Chinese Physics C, 2004, 28(12): 1307-1312.
[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/u⁴⁰Ar+¹⁹⁷Au. Chinese Physics C, 2003, 27(2): 118-123.
[4]	CHEN Yu-Yan,PAN Feng. Applications of Mean-field Plus Nearest-Orbit Pairing Interaction Model to Well-Deformed Nuclei. Chinese Physics C, 2002, 26(11): 1142-1150.
[5]	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/u⁴⁰Ar+⁹³Nb. Chinese Physics C, 1998, 22(9): 780-786.
[6]	Bai Xinhua,Hu Jimin. Pairing Interction between Neutrons and Netron Halo in Light Nuclei. Chinese Physics C, 1997, 21(10): 932-936.
[7]	Feng Shengqin,Wang Zhengqing. Rapidity Distribution of Various Charged Hadrons in High Energy Nucleus-Nucleus Interactions. Chinese Physics C, 1996, 20(10): 919-924.
[8]	Ren Jingru,Lu Suiling,Wang Chengrui,He Mao,Zhang Naijian,Cao Peiyuan,Li Jinyu. Halo Events in Superhigh Energy Nuclear Interactions. Chinese Physics C, 1996, 20(5): 400-404.
[9]	. Nuclear Fragmentation and Particle Production in Interactions Induced by 10.7A GeV¹⁹⁷Au at BNL/AGS. Chinese Physics C, 1995, 19(8): 703-712.
[10]	Liu Lianggang,Ma Weixing,Jiang Huanqing. The Particle-Hole and Delta-Hole Excitations in Nuclear Matter. Chinese Physics C, 1994, 18(11): 1027-1034.
[11]	LIU Bo. Enhancement of K⁺/π⁺Ratio in High-Energy Proton-Nucleus and Nucleus-Nucleus Collisions Due to the Secondary Collisions. Chinese Physics C, 1993, 17(5): 455-461.
[12]	LIU Ji-Feng,WU Pei-Yun,SHEN Jian-Ping,LI Guang-Lie. The η-N Interaction Potential and the Potential Well Depth of η-meson in Nuclear Matter. Chinese Physics C, 1991, 15(3): 224-233.
[13]	DING Lin-Kai. ON THE COLLISION GEOMETRY IN NUCLEAR INTERACTIONS. Chinese Physics C, 1990, 14(4): 303-310.
[14]	SHEN Peng-Nian,ZHANG Zong-Ye,YU You-Wen. CORRELATED EFFECT ARISEN FROM EXCITATIONS OF SIX-QUARK CLUSTERS IN NUCLEON-NUCLEON INTERACTION. Chinese Physics C, 1990, 14(10): 900-906.
[15]	SUN Tong-Yu,LI Wen-Xin,WU Ding-Qing,WANG Su-Fang,XU Shu-Wei,ZHAO Li-Li,GUO Ying-Xiang,SUN Xiu-Rong. EXCITATION FUNCTIONS FOR¹⁶O-INDUCED REACTION ON¹¹⁵In. Chinese Physics C, 1990, 14(1): 64-69.
[16]	YUAN Jian,MAO Zhi-Qiang,ZHANG Pei-Hua,YUAN Rong-Fang,BAO Xiu-Min,WANG Yuan-Da,XU Jian-Ping,XU Xie,SUN Zu-Xun. CORE EXCITATION EFFECT AND FULLY MICROSCOPIC DWBA ANALYSES ON⁸⁹Y(α,p)⁹²Zr REACTION. Chinese Physics C, 1989, 13(11): 1049-1056.
[17]	JING Gui-Ru,DING Lin-Kai,ZHU Qing-Qi,JING Cai-Liu. RING-LIKE EVENT OBSERVED IN SUPERHIGH ENERGY INTERACTION AND PHASE TRANSITION. Chinese Physics C, 1987, 11(5): 603-608.
[18]	WU Mei,REN Guo-Xiao. DATA PROCESSING METHOD IN MEASURING THE MEAN-PATH OF NUCLEAR INTERACTIONS. Chinese Physics C, 1987, 11(2): 145-149.
[19]	LIU Guo-Xing,CHEN Ke-Liang,MA Hong-Fan,WANG Su-Fang,CAI Wei. FISSION EXCITATION FUNCTION IN INTERATIONS OF¹²C IONS WITH VARIOUS TARGETS. Chinese Physics C, 1986, 10(5): 597-604.
[20]	SHEN Qing-Biao,LI Zhu-Xia,SHI Xiang-Jun,TIAN Ye,ZHUO Yi-Zhong. off-shell SINGLE-PARTICLE POTENTIAL AND EFFECTIVE MASS CALCULATION WITH SKYRME INTERACTIONS IN NUCLEAR MATTER. Chinese Physics C, 1985, 9(2): 220-228.

Access

Get Citation

MA YuGang, SU QianMin, SHEN WenQing, WANG JianSong, FANG DeQing, CAI XiangZhou and ZHANG HuYong. Role of Excitation Energy in Nuclear Dissociation[J]. Chinese Physics C, 2000, 24(6): 528-534.

MA YuGang, SU QianMin, SHEN WenQing, WANG JianSong, FANG DeQing, CAI XiangZhou and ZHANG HuYong. Role of Excitation Energy in Nuclear Dissociation[J]. Chinese Physics C, 2000, 24(6): 528-534. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 1999-03-17
Revised: 1900-01-01

Article Metric

Article Views(4252)
PDF Downloads(595)
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

Role of Excitation Energy in Nuclear Dissociation

Corresponding author:MA YuGang,

Shanghai Institute of Nuclear Research, The Chinese Academy of Sciences, Shanghai 201800, China2 T.D.Lee Physics Laboratory, Fudan University, Shanghai 200433, China

Received Date:1999-03-17

Accepted Date:1900-01-01

Available Online:2000-06-05

Abstract:The features of thermodynamics and particle emission during the disassembly of¹²⁹Xe are investigated as functions of temperature and freeze-out density in the framework of the lattice gas model. The calculation shows different temperature dependence of physical observables at different freeze-out density. In this case, the critical temperature at the phase transition depends strongly on the freeze-out density. However, a unique critical excitation energy is revealed in different freeze-out densities when the excitation energy is used as a variable instead of temperature. Moreover, the different behavior of particle emission with temperature stemming from different ρ_fvanishes when excitation energy replaces temperature. It indicates that the excitation energy can be seen as a basic and scalable quantity to control nuclear disassembly.

HTML

Reference (1)

Role of Excitation Energy in Nuclear Dissociation

Abstract：

References

Access

Article Metrics

Metrics

通讯作者:陈斌, bchen63@163.com

Email This Article