Importance of Momentum Dependence Interactionon the Isospin Dependence of the Mean Field

GUO Wen-Jun; LIU Jian-Ye; YANG Yan-Fang; ZUO Wei; ZHAO Qiang

Chinese Physics C> 2002, Vol. 26> Issue(7) : 690-695

Importance of Momentum Dependence Interactionon the Isospin Dependence of the Mean Field

Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator,Lanzhou 730000, China2 Institute of Modern Physics, The Chinese Academy of Sciences, Lanzhou 730000, China

Abstract
HTML
Reference
Related

PDF

Abstract：
The role of momentum dependence equation of state on the nuclear stoppings coming from the isospin dependence of the mean field (one-body dissipation) is studied by using the isospin dependence quantum molecular dynamics (IQMD). A detail study indicates that the difference between the nuclear stoppings coming from the isospin dependence of the mean field (symmetry potential) and the isospin independence of the mean field in the presence of momentum dependence interaction is larger than that without momentum dependence interaction. But the important point is that the enhancement of the difference between nuclear stoppings from the isospin dependence of two-body dissipation is larger than that from the isospin dependence of one-body dissipation in the presence of momentum dependence interaction. Namely in comparison with each other, the momentum dependence equation of state enhances the sensitivity of nuclear stopping on the isospin dependence of in-medium nucleon-nucleon cross section and reduces the sensitivity of the nuclear stopping on the symmetry potential, leading to that the nuclear stopping depends strongly on the isospin dependence of nucleon-nucleon cross section and weakly on the symmetry potential. In this case, one can make use of the nuclear stopping as a probe for extracting the information of in-medium N-N cross section in HIC if MDI is taken into account.

References

[1]

. LI Bao-An, Ko Che-Ming et al. Inter. Jour. Mod. Phys.,1998,E7(2):147 2. LIU Jian-Ye, GUO Wen-Jun, WANG Shun-Jin et al. Phys. Rev. Lett.,2001,86:9753. LIU Jian-Ye, YANG Yan-Fang, ZUO Wei et al. Phys. Rev.,2001,C63:054612 4. YANG Yan-Fang, LIU Jian-Ye, ZUO Wei et al. Chinese Physics Letter.,2001,18(8):10405. Aichelin J, Peilert G, Bohnet A et al. Phys. Rev.,1988,C37:2451 6. Peilert G, Stocher H, Greiner W. Phys. Rev.,1989,C39:14027. LIU Hang, LIU Jian-Ye. Z. Phys.,1996,A345:311 8. Dorso C, Duarte S, Randrup J. Phys. Lett.,1987,B188:2879. Aichelin J, Rosenhauer A, Peilert G et al. Phys. Rev. Lett.,1987,58:1926 10. Reinhard P G. Computational Nuclear Physics 1. In:Edited by K. Langanke, J. A. Maruhn, S. E. Koonin. Germany:Springer-Verlag,1991.28—50 11. Klakow D, Welke G, Bauer W. Phys. Rev.,1993,C48:1982 12. Chen K, Fraenkel Z et al. Phys. Rev. 1968,166:94913. Huang M J et al. Phys. Rev. Lett.,1996,77:3739 14. Westfall G D et al. Phys. Rev. Lett.,1993,71:1986 15. YANG Yan-Fang, LIU Jian-Ye, GUO Wen-Jun et al. High Energy Phys. and Nucl. Phys.,2002,26:377(in Chinese)(杨艳芳,刘建业,郭文军等.高能物理与核物理,2002,26:377)

[1]	LEI Yi-An , ZENG Jin-Yan . Isospin Dependence of Nuclear Charge Radii and Its Microscopic Demonstration. Chinese Physics C, 2007, 31(8): 731-735.
[2]	HAO Huan-Feng , XING Yong-Zhong , LIU Jian-Ye . Influence of Isospin\, Dependence\, of\, Nucleon-Nucleon\, Cross\, Section\, and\, Momentum\, DependentInteraction on the Isoscaling in Intermediate Energy Collisions. Chinese Physics C, 2007, 31(7): 651-654.
[3]	MA Zhong-Yu , RONG Jian . Isospin-Dependence of Nucleon Potential and Effective Mass in Relativistic Approach. Chinese Physics C, 2006, 30(12): 1230-1233.
[4]	LIU Jian-Ye , GUO Wen-Jun , Xing Yong-Zhong , LI Xi-Guo . Isospin Effect of Momentum Dependent Interaction in Heavy Ion Collisions. Chinese Physics C, 2005, 29(5): 456-460.
[5]	RONG Jian , MA Zhong-Yu . The Isospin-dependent Term in the Relativistic Microscopic Optical Potential. Chinese Physics C, 2005, 29(10): 970-973.
[6]	YE Wei . Dependence of Isospin Effect in the Multiplicity of Pre-Scission Particles on the Angular Momentum. Chinese Physics C, 2004, 28(6): 611-616.
[7]	LI Jun , BAN Shu-Fang , JIA Huan-Yu , SANG Jian-Ping , MENG Jie . Description of the Nuclear Matter and Neutron Star in Relativistic Mean Field Theory with Density-Dependent Interactions. Chinese Physics C, 2004, 28(2): 140-147.
[8]	ZUO Wei , LIU Jian-Ye , LI Jun-Qing . Properties of Isospin Asymmetric Nuclear Matter and Extended BHF Approach (Ⅵ)Proton and Neutron Mean Free Paths and Their Isospin Dependence. Chinese Physics C, 2003, 27(10): 888-891.
[9]	XING Yong-Zhong , LIU Jian-Ye , GUO Wen-Jun , ZUO Wei , DI Yu-Fang , LI Xi-Guo , LI Zeng-Hua . Isospin Effects on Fragmentation Process and Role of Momentum Dependent Interaction in Heavy Ion Collisions at Intermediate Energy. Chinese Physics C, 2003, 27(2): 130-134.
[10]	ZUO Wei , LI Zeng-Hua , LIU Jian-Ye . Properties of Isospin Asymmetric Nuclear Matterand Extended BHF Approach(Ⅰ) Isospin Dependent Extended BHF Approach. Chinese Physics C, 2002, 26(7): 703-711.
[11]	LI Qing-Feng , LI Zhu-Xia . Probing Equilibration in HICs and Symmetry Energy by Using Isospin-Related Observables. Chinese Physics C, 2002, 26(9): 926-932.
[12]	XING Yong-Zhong , LIU Jian-Ye , GUO Wen-Jun , ZUO Wei , LI Xi-Guo . Role of Momentum Dependent Interaction on the Isospin Effects of Fragmentations and Dissipations at Intermediate Energy Heavy Ion Collisions. Chinese Physics C, 2002, 26(S1): 63-72.
[13]	YANG Yan-Fang , LIU Jian-Ye , GUO Wen-Jun , ZUO Wei , ZHAO Qiang . Importance of Momentum Dependence Interaction on the Isospin Effects of Two-Body Dissipation. Chinese Physics C, 2002, 26(4): 377-382.
[14]	MING ZhaoYu , ZHANG FengShou , CHEN LieWen , ZHU ZhiYuan , ZHAN WenLong , GUO ZhongYan , XIAO GuoQing . Isospin Dependent Boltzmann-Langevin Equation and the Production Cross Section of ¹⁹Na. Chinese Physics C, 2000, 24(7): 656-661.
[15]	ZHAO Qiang , CHEN Bo , LIU JianYe , ZHANG FengShou , WANG ShunJin , CHEN LieWen , ZUO Wei . Probable Observable of Isospin Dependent Nucleon-Nucleon Cross Section in Inter Mediate Energy Heavy Ion Collisions. Chinese Physics C, 2000, 24(5): 426-430.
[16]	CHEN Bo , ZHAO Qiang , LIU JianYe , ZHANG FengShou , WANG ShunJin , CHEN LieWen , ZUO Wei . A Sensitive Probe for Isospin-Dependent Nucleon-Nucleon Cross Section in Intermediate Energy Heavy Ion Collision. Chinese Physics C, 2000, 24(4): 326-330.
[17]	FENG CunFeng , ZHANG XueYao , KONG FanMin , HE Mao , FU Yu , DAI ZhiQiang , ZHANG NaiJian . Relation between Interactive Models and Identification of Primary Cosmic Ray Components at the “Knee”. Chinese Physics C, 2000, 24(6): 467-472.
[18]	Zhang Fengshou , Chen Liewen . An Isospin-Dependent Nuclear Equation of State. Chinese Physics C, 1999, 23(12): 1190-1196.
[19]	ZHANG Jian-Ming , GE Ling-Xiao , ZHANG Feng-Shou , ZHUO Yi-Zhong . BUU Calculation With Momentum Dependent Mean Field. Chinese Physics C, 1991, 15(5): 457-464.
[20]	REN Zhong-Zhou , XU Gong-Ou . ALPHA CLUSTERING WITH PAIRING FORCES DEPENDENT OF SPIN AND ISOSPIN. Chinese Physics C, 1990, 14(1): 92-96.

Access

Get Citation

GUO Wen-Jun, LIU Jian-Ye, YANG Yan-Fang, ZUO Wei and ZHAO Qiang. Importance of Momentum Dependence Interactionon the Isospin Dependence of the Mean Field[J]. Chinese Physics C, 2002, 26(7): 690-695.

GUO Wen-Jun, LIU Jian-Ye, YANG Yan-Fang, ZUO Wei and ZHAO Qiang. Importance of Momentum Dependence Interactionon the Isospin Dependence of the Mean Field[J]. Chinese Physics C, 2002, 26(7): 690-695. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2001-07-30
Revised: 1900-01-01

Article Metric

Article Views(2940)
PDF Downloads(639)
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

Importance of Momentum Dependence Interactionon the Isospin Dependence of the Mean Field

Corresponding author: GUO Wen-Jun,

Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator,Lanzhou 730000, China2 Institute of Modern Physics, The Chinese Academy of Sciences, Lanzhou 730000, China

Received Date: 2001-07-30

Accepted Date: 1900-01-01

Available Online: 2002-07-05

Abstract: The role of momentum dependence equation of state on the nuclear stoppings coming from the isospin dependence of the mean field (one-body dissipation) is studied by using the isospin dependence quantum molecular dynamics (IQMD). A detail study indicates that the difference between the nuclear stoppings coming from the isospin dependence of the mean field (symmetry potential) and the isospin independence of the mean field in the presence of momentum dependence interaction is larger than that without momentum dependence interaction. But the important point is that the enhancement of the difference between nuclear stoppings from the isospin dependence of two-body dissipation is larger than that from the isospin dependence of one-body dissipation in the presence of momentum dependence interaction. Namely in comparison with each other, the momentum dependence equation of state enhances the sensitivity of nuclear stopping on the isospin dependence of in-medium nucleon-nucleon cross section and reduces the sensitivity of the nuclear stopping on the symmetry potential, leading to that the nuclear stopping depends strongly on the isospin dependence of nucleon-nucleon cross section and weakly on the symmetry potential. In this case, one can make use of the nuclear stopping as a probe for extracting the information of in-medium N-N cross section in HIC if MDI is taken into account.

HTML

Reference (1)

Importance of Momentum Dependence Interactionon the Isospin Dependence of the Mean Field

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article