Pinning down the Density-Dependent Symmetry Energy by Using Double n/p Ratio

YONG Gao-Chan; CHEN Lie-Wen; LI Bao-An; ZUO Wei

Chinese Physics C> 2006, Vol. 30> Issue(7) : 642-645

Pinning down the Density-Dependent Symmetry Energy by Using Double n/p Ratio

Institute of Modern Physics, Chinese Academy of Science, Lanzhou 730000, China2 Graduate University of Chinese Academy of Science, Beijing 100049, China3 Institute of Theoretical Physics, Shanghai Jiaotong University, Shanghai 200240, China4 Department of Chemistry and Physics, P.O.Box 419, Arkansas State University, State University, Arkansas 72467-0419, USA

Abstract
HTML
Reference
Related

PDF

Abstract：
Based on a transport model IBUU04, the double n/p ratio is studied. It is found that the double n/p ratio has almost the same sensitivity to the density dependence of nuclear symmetry energy as the single n/p ratio does. Because the double n/p ratio of nucleon emissions taken from two reaction systems can reduce systemic errors effectively, it is thus more useful for constraining the density-dependent symmetry energy further.

References

[1]

. Lattimer J M, Prakash M. Phys. Rep., 2000, 333: 1212. Steiner A W et al. Phys. Rep., 2005, 411: 3253. RIA Theory Working Group. RIA Theory Bluebook, 2005.32. www.orau.org/ria/RIATG4. LI B A, KO C M, Bauer W. Int. J. of Modern Phys., 1998,E7: 1475. LI B A, Udo Schroder W. Isospin Physics in Heavy-Ion Col-lisions at Intermediate Energies. New York: Nova SciencePublishers, Inc, 2001. 16. Baran V et al. Phys. Rep., 2005, 410: 3357. LI B A et al. Phys. Rev., 2004, C69: 011603; Nucl. Phys.,2004, A735: 5638. Tsang M B et al. Phys. Rev. Lett., 2004, 92: 0627019. CHEN L W, KO C M, LI B A. Phys. Rev. Lett., 2005, 94:03270110. LI B A, CHEN L W. 2005. nucl-th/050802411. Steiner A W, LI B A. 2005. nucl-th/050505112. LI B A, KO C M, REN Z Z. Phys. Rev. Lett., 1997, 78:164413. LI B A. Phys. Rev. Lett., 2000, 85: 422114. CHEN LW et al. Phys. Rev. Lett., 2003, 90: 162701; Phys.Rev., 2003, C68: 01460515. CHEN L W, KO C M, LI B A. Phys. Rev., 2003, C68:017601; Nucl. Phys., 2003, A729: 80916. ZHANG Y, LI Z. Phys. Rev., 2005, C71: 02460417. LI B A. Phys. Rev. Lett., 2002, 88: 192701; Nucl. Phys.,2002, A708: 365; Phys. Rev., 2003, C67: 01760118. Gaitanos T et al. Nucl. Phys., 2004, A732: 2419. LI B A, YONG G C, ZUO W. Phys. Rev., 2005, C71:01460820. LI Q F et al. Phys. Rev., 2005, C72: 03461321. LI Q F et al. Phys. Rev., 2005, C71: 05460722. Ferini G et al. 2005. nucl-th/050403223. Lynch W G, Sobotka L G, Tsang M B. private communi-cations24. Das C B et al. Phys. Rev., 2003, C67: 03461125. Bombaci I, Lombardo U. Phys. Rev., 1991, C44: 189226. Youngblood D H et al. Phys. Rev. Lett., 1999, 82: 69127. Piekarewicz J. Phys. Rev., 2004, C69: 04130128. Colo G et al. Phys. Rev., 2004, C70: 02430729. Wiringa R B. Phys. Rev., 1988, C38: 296730. ZUO W, Bombaci I, Lombardo U. Phys. Rev., 1999, C60:02460531. ZUO W et al. Phys. Rev., 2005, C72: 01400532. Sammarruca F, Barredo W, Krastev P. Phys. Rev., 2005,C71: 06430633. Lane A M. Nucl. Phys., 1962, A35: 67634. Sammarruca F, Krastev P. 2005. nucl-th/0506081

[1]	FENG Zhao-Qing , JIN Gen-Ming , FU Fen , LI Jun-Qing . Isotopic Dependence of Production Cross Sections of Superheavy Nuclei in Hot Fusion Reactions. Chinese Physics C, 2007, 31(4): 366-370.
[2]	ZHANG Fang , ZUO Wei , YONG Gao-Chan . Probinhg the High Density Behavior of the Symmetry Energy by Using Proton Elliptic Flow. Chinese Physics C, 2007, 31(8): 741-744.
[3]	YE Wei . Possible Dependence of Dissipation Strength on Angular Momentum. Chinese Physics C, 2006, 30(8): 759-760.
[4]	YE Wei . Dependence of Isospin Effects of Particle Evaporation on the Nuclear Shell Structure. Chinese Physics C, 2005, 29(3): 268-272.
[5]	YONG Gao-Chan , Bao An Li , ZUO Wei . Study on Stiffness of the Symmetry Energy at High Densities by π^－/π⁺ Ratio. Chinese Physics C, 2005, 29(4): 366-370.
[6]	LI Xi-Ming , ZHAO Ning-Hua , LAN Jian-Sheng . Asymmetry of hadron production in pp(p) reaction. Chinese Physics C, 2005, 29(12): 1125-1130.
[7]	ZUO Wei , CHEN Ji-Yan , LI Bao-An , LUO Pei-Yan , Lombardo U . Momentum and Density Dependence of Isospin Symmetry Potential in Asymmetric Nuclear Matter. Chinese Physics C, 2005, 29(9): 881-885.
[8]	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.
[9]	HUANG Bo-Wen . Supersymmetry of a Double Ring-Shaped Oscillator. Chinese Physics C, 2003, 27(9): 770-774.
[10]	ZHANG Hui-Lan , LIU Lian-Shou . Dependence of Entropy Index on the Width and Shape of Multiplicity Distributions. Chinese Physics C, 2003, 27(9): 803-807.
[11]	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.
[12]	ZHANG BenWei , HOU DeFu , LI JiaRong . Dependence of ρ Meson mass on Temperature and Chemical Potential. Chinese Physics C, 2000, 24(5): 457-461.
[13]	Wang Shaoshun , Wang Zhaomin , Zhang Jie . Angular Dependence of Two Particle Correlation in 400GeV/c pp Collisions. Chinese Physics C, 1997, 21(11): 990-994.
[14]	Dai Guangxi . Deformation Potentials in Symmetric Multi-Fold Fission and Their Temperature-Dependence. Chinese Physics C, 1995, 19(5): 447-454.
[15]	Jing Guiru , Wang Guangjun , Ding Linkai , Jing Cailiu . Inelasticity of p-A Interaction and Its Dependence on the Mass of Target. Chinese Physics C, 1994, 18(12): 1057-1063.
[16]	WU Yuan-Fang , LIU Lian-Shou . The two Normalization schemes of Factorial Moments in High Energy Collisions and the Dependence Intermittency Degree on Average Transverse Momentum. Chinese Physics C, 1992, 16(3): 235-240.
[17]	SA Ben-Hao , ZHENG Yu-Ming , ZHANG Xiao-Zhe . DEPENDENCE OF PHASE TRANSITION ON THE MASS NUMBER OF HOT NUCLEI. Chinese Physics C, 1990, 14(6): 555-560.
[18]	ZHUANG Pen-Fei , LIU Lian-Shou . TARGET MASS DEPENDENCE AND NON-LINEAR EFFECTS IN HIGH ENERGY HEAVY ION COLLISIONS. Chinese Physics C, 1990, 14(3): 240-246.
[19]	CAI Xu , WU Yuan-Fang , LIU Lian-Shou . ENERGY DEPENDENCE OF MULTIPLICITY MOMENTS AND THREE FIRE BALL MODEL. Chinese Physics C, 1987, 11(4): 554-557.
[20]	SONG XIAO-TONG , WANG MIN-CHANO . THE DOUBLE SPECTRAL FUNCTIONS OF PHOTON-NUCLEON SCATTERING AND INELASTIC CROSS-SECTIONS OF γ+p→p+π⁺+π^-. Chinese Physics C, 1981, 5(3): 282-291.

Access

Get Citation

YONG Gao-Chan, CHEN Lie-Wen, LI Bao-An and ZUO Wei. Pinning down the Density-Dependent Symmetry Energy by Using Double n/p Ratio[J]. Chinese Physics C, 2006, 30(7): 642-645.

YONG Gao-Chan, CHEN Lie-Wen, LI Bao-An and ZUO Wei. Pinning down the Density-Dependent Symmetry Energy by Using Double n/p Ratio[J]. Chinese Physics C, 2006, 30(7): 642-645. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2005-10-22
Revised: 2006-02-15

Article Metric

Article Views(2810)
PDF Downloads(659)
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

Pinning down the Density-Dependent Symmetry Energy by Using Double n/p Ratio

Corresponding author: YONG Gao-Chan,

Institute of Modern Physics, Chinese Academy of Science, Lanzhou 730000, China2 Graduate University of Chinese Academy of Science, Beijing 100049, China3 Institute of Theoretical Physics, Shanghai Jiaotong University, Shanghai 200240, China4 Department of Chemistry and Physics, P.O.Box 419, Arkansas State University, State University, Arkansas 72467-0419, USA

Received Date: 2005-10-22

Accepted Date: 2006-02-15

Available Online: 2006-07-05

Abstract: Based on a transport model IBUU04, the double n/p ratio is studied. It is found that the double n/p ratio has almost the same sensitivity to the density dependence of nuclear symmetry energy as the single n/p ratio does. Because the double n/p ratio of nucleon emissions taken from two reaction systems can reduce systemic errors effectively, it is thus more useful for constraining the density-dependent symmetry energy further.

HTML

Reference (1)

Pinning down the Density-Dependent Symmetry Energy by Using Double n/p Ratio

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article