| Original Articles |
|
|
|
|
Sensitive Probe for Symmetry Potential |
LIU Jian-Ye 1,2,3;XIAO Guo-Qing 1,2;GUO Wen-Jun 5;REN Zhong-Zhou 1,4,
ZUO Wei 1,2;LEE Xi-Guo 1,2 |
| 1Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 7300002Institute of Modern Physics, Chinese Academy of Sciences, PO Box31, Lanzhou 7300003Institute of Basic Physics, College of Mathematics-Physics and Information, Tianshui Normal University, Tianshui 7410004Department of Physics, Nanjing University, Nanjing 2100085Science College, University of Shanghai for Science and Technology, Shanghai 200093 |
|
| Cite this article: |
|
LIU Jian-Ye, XIAO Guo-Qing, GUO Wen-Jun et al 2007 Chin. Phys. Lett. 24 660-663 |
|
|
|
|
Abstract Based on both very obvious isospin effect of the neutron--proton number ratio of nucleon emissions (n/p) nucl on symmetry potential and (n/p) nucl's sensitive dependence on symmetry potential in the nuclear reactions induced by halo-neutron projectiles, compared to the same mass stable projectile, probing symmetry potential is investigated within the isospin-dependent quantum molecular dynamics with isospin and momentum-dependent interactions for different symmetry potentials U1sym and U2 sym. It is found that the neutron-halo projectile induces very obvious increase of (n/p) nucl and strengthens the dependence of (n/p) nucl on the symmetry potential for all the beam energies and impact parameters, compared to the same mass stable projectile under the same incident channel condition. Therefore (n/p) nucl induced by the neutron-halo projectile is a more favourable probe than the normal neutron-rich and neutron-poor projectiles for extracting the symmetry potential.
|
| Keywords:
25.70.Pg
|
|
|
Received: 06 November 2006
Published: 08 February 2007
|
|
|
|
|
|
|
|
[1] Tanihata I, Hamagaki H Hashimoto O et al 1985 Phys. Rev.Lett. 55 2676
[2]Tanihata I, Hamagaki H, Hashimoto O et al 1985 Phys.Lett. B 160 380
[3] Mittig W, Chouvel J M, Zhan W L et al 1987 Phys. Rev.Lett. 59 1889
[4]Pietro A, Figuera P, Amorini A et al 2004 Phys. Rev. C 69 044613
[5]Gomes P R S, Anjos R M, Muri C et al 2004 Phys. Rev. C 70 054605
[6]Ma Y G and Shen W Q et al 1993 Phys. Rev. C 48 850
[7]Zhao Y L, Ma Z Y, Chen B Q et al 2001 High Energy Phys.Nucl. Phys. 26 506
[8]Ren Z Z, Xu G G, Chen B Q et al 1995 Phys. Lett. B 252 311
[9]Liu Z H, Ruan M, Zhao Y L, Zhang H Q et al 2004 Phys.Rev. C 69 034326
[10]Guo W J, Jian H Q, Liu J Y, Zuo W, Ren Z Z and Lee X G 2003 Commun. Theor. Phys. 40 577
[11]Carstoiu F, Trache L, Robert Tribble E et al 2004 Phys.Rev. C 70 054610
[12]Navin A, Tripathi V, Blumenfeld Y et al 2004 Phys. Rev.C 70 044601
[13] Lin C J, Liu Z H and Zhang H Q 2001 Chin. Phys. Lett. 18 1183
[14]Alamanos N, Pakou A, Lapoux V et al 2002 Phys. Rev. C 65 054606
[15]Fukuda N, Nakamura N, Aoi N et al 2004 Phys. Rev. C 70 054606
[16] Zadro M 2004 Phys. Rev. C 70 044605
[17]Rusek K, Alamanos N, Keeley N et al 2004 Phys. Rev. C 70 014603
[18]Liu J Y, Guo W, Ren Z Z, Xing Y Z et al 2005 Phys.Lett. B 617 24
[19]Cai X Z, Zhang H Y, Shen W Q, Ren Z Z et al 2002 Phys.Rev. C 65 024610
[20]Gomez Camacho A, Aguilera E F et al 2004 Nucl. Phys. A 735 425
[21]Suzuki T, Ogawa Y, Chiba M, Fukuda M et al 2002 Phys.Rev. Lett. 89 012501
[22]Bertsch G F and Gupta S D 1988 Phys. Rep. 160 1991
[23]Aichelin A, Rosenhauer A, Peilert G, Stoecker H and Greiner W1987 Phys. Rev. Lett. 58 1926
[24]Aichelin J, Peilert G, Bohnet A, Rosenhauer A et al 1988 Phys. Rev. C 37 2451
[25]Reinhard P G et al 2000 Comput. Nucl. Phys. 1 28
[26]Liu J Y, Xing Y Z and Guo W J 2003 Chin. Phys. Lett. 20 8329
[27]Li B A, Ko C W and Bauer W 1998 Int. J. Mod. Phys. E 7 147
[28]Li B A and Udo Schr W \"oder 2001 Isospin Physics in Heavy-IonCollisions at Intermediate Energies (New York: Nova Science)
[29]Liu J Y, Guo W J, Xing Y Z and Lee Xi Guo 2005 Chin.Phys. Lett. 22 65
[30]Klakow D, Welke G and Bauer W 1993 Phys. Rev. C 48 1982
[31]Alkahzov G, Bauer T and Bertini R 1977 Nucl. Phys. A 280 365 |
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
