Probing the Symmetrical Potential in Nuclear Reaction Iinduced by Neutron-Halo Nuclei

  • In terms of the isospin-dependent quantum molecular dynamics model (IQMD), important isospin effect in the halo-neutron nucleus induced reaction mechanism is investigated, and consequently, the symmetrical potential form is extracted in the intermediate energy heavy ion collision. Because the interactive potential and in-medium nucleon-nucleon (N-N) cross section in the IQMD model sensitively depend on the density distribution of the colliding system, this type of study is much more based on the extended density distribution with a looser inner nuclear structure of the halo-neutron nucleus. Such a density distribution includes averaged characteristics of the isospin effect of the reaction mechanism and the looser inner nuclear structure. In order to understand clearly the isospin effect of the halo-neutron nucleus induced reaction mechanism, the effects caused by the neutron-halo nucleus and by the stable nucleus with the same mass are compared under the same condition of the incident channel. It is found that in the concerned beam energy region, the ratio of the emitted neutrons and protons and the ratio of the isospin fractionations in the neutron-halo nucleus case are considerably larger than those in the stable nucleus case. Therefore, the information of the symmetry potential in the heavy ion collision can be extracted through such a procedure.
  • 加载中
  • [1] . Tanihata I, Hamagaki H, Hashimoto O et al. Phys. Rev.Lett., 1985, 55: 26762. Tanihata I, Hamagaki H, Hashimoto O et al. Phys. Lett.,1985, B160: 3803. Mittig W, Chouvel J M, ZHAN Wen-Long et al. Phys. Rev.Lett., 1987, 59: 18894. Pietro A Di, Figuera P, Amorini F et al. Phys. Rev., 2004,C69: 0446135. Gomes P R S, Anjos R M, Muri C et al. Phys. Rev., 2004,C70: 0546056. MA Y G, SHEN W Q et al. Phys. Rev., 1993, C48: 850;Phys. Lett., 1993, B302: 3867. ZHAO Y L, MA Z Y, CHEN B Q et al. HEP NP, 2001,25(6): 506 (in Chinese)(赵耀林, 马中玉, 陈宝秋等. 高能物理与核物理, 2001, 25(6):506)8. REN Z Z, XU G G, CHEN B Q et al. Phys. Lett., 1990,B252: 311; Phys. Lett.,1995, B351: 119. LIU Z H, RUAN M, ZHAOY L et al. Phys. Rev., 2004,C69: 03432610. GUO W J et al. Commun. Theor. Phys., 2003, 40: 57711. Carstoiu F, Trache L, Tribble Robert E et al. Phys. Rev.,2004, C70: 05461012. Navin A, Tripathi V, Blumenfeld Y et al. Phys. Rev., 2004,C70: 04460113. LIN C J, LIU Z H, ZHANG H Q. Chin. Phys. Lett., 2001,18: 118314. Alamanos N, Pakou A, Lapoux V et al . Phys. Rev., 2002,C65: 05460615. Fukuda N, Nakamura T, Aoi N et al. Phys. Rev., 2004,C70: 05460616. Zadro M. Phys. Rev., 2004, C70: 04460517. Rusek K, Alamanos N, Keeley N et al. Phys. Rev., 2004,C70: 01460318. LIU J Y, GUO W, REN Z Z et al. Phys. Lett., 2005, B617:2419. CAI X Z, ZHANG H Y, SHEN WQ et al. Phys. Rev., 2003,C65: 02461020. Gomez Camacho A, Aguilera E F et al. Nucl. Phys., 2004,A735: 42521. Suzuki T, Ogawa Y, Chiba M et al. Phys. Rev. Lett., 2002,89: 01250122. Bertsch G F, Das. Gupta S. Phys. Rep., 1988, 160: 199123. Aichelin J et al. Phys. Rev. Lett., 1987, 58: 192624. Aichelin J et al. Phys. Rev., 1988, C37: 245125. LI B A, KO C M, Bauer W. Int. J. Mod. Phys., 1998, E7:14726. LI B A, Udo Schroder W. Isospin Physics in Heavy-Ion Collisions at Intermediate Energies. Nova Science Publishers,Inc. Huntington, New York, 200127. Klakow D, Welke G, Bauer W. Phys. Rev., 1993, C48:198228. Alkahzov G, Bauer T, Bertini R. Nucl. Phys., 1977, A280:365
  • 加载中

Get Citation
LIU Jian-Ye, XIAO Guo-Qing, ZUO Wei and LI Xi-Guo. Probing the Symmetrical Potential in Nuclear Reaction Iinduced by Neutron-Halo Nuclei[J]. Chinese Physics C, 2007, 31(2): 150-154.
LIU Jian-Ye, XIAO Guo-Qing, ZUO Wei and LI Xi-Guo. Probing the Symmetrical Potential in Nuclear Reaction Iinduced by Neutron-Halo Nuclei[J]. Chinese Physics C, 2007, 31(2): 150-154. shu
Milestone
Received: 2006-04-06
Revised: 2006-05-12
Article Metric

Article Views(1332)
PDF Downloads(810)
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

  1. 本站搜索
  2. 百度学术搜索
  3. 万方数据库搜索
  4. CNKI搜索

Email This Article

Title:
Email:

Probing the Symmetrical Potential in Nuclear Reaction Iinduced by Neutron-Halo Nuclei

    Corresponding author: LIU Jian-Ye,
  • Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China2 Institute of Basic Physics, College of Mathematics-Physics and Information,Tianshui Normal University, Tianshui 741000, China3 Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator of Lanzhou,Lanzhou 730000, China

Abstract: In terms of the isospin-dependent quantum molecular dynamics model (IQMD), important isospin effect in the halo-neutron nucleus induced reaction mechanism is investigated, and consequently, the symmetrical potential form is extracted in the intermediate energy heavy ion collision. Because the interactive potential and in-medium nucleon-nucleon (N-N) cross section in the IQMD model sensitively depend on the density distribution of the colliding system, this type of study is much more based on the extended density distribution with a looser inner nuclear structure of the halo-neutron nucleus. Such a density distribution includes averaged characteristics of the isospin effect of the reaction mechanism and the looser inner nuclear structure. In order to understand clearly the isospin effect of the halo-neutron nucleus induced reaction mechanism, the effects caused by the neutron-halo nucleus and by the stable nucleus with the same mass are compared under the same condition of the incident channel. It is found that in the concerned beam energy region, the ratio of the emitted neutrons and protons and the ratio of the isospin fractionations in the neutron-halo nucleus case are considerably larger than those in the stable nucleus case. Therefore, the information of the symmetry potential in the heavy ion collision can be extracted through such a procedure.

    HTML

Reference (1)

目录

/

DownLoad:  Full-Size Img  PowerPoint
Return
Return