Probing the symmetry potential with neutron-proton bremsstrahlung in heavy-ion collisions

  • In the framework of the isospin-dependent quantum molecular dynamics transport model (QMD), the effects of symmetry potential on the collision number and the neutron-proton bremsstrahlung photon in the reactions of 40Ca+40Ca, 124Sn+124Sn, 40Ca+64Zn, 40Ca+124Sn at different incident beam energies are studied. It is found that the collision number shows moderate sensitivity to the stiffness of the symmetry potential and the number of hard photons calculated with stiff symmetry potential is obviously smaller than that with soft symmetry potential. Thus, the neutron-proton bremsstrahlung photons produced in heavy-ion collisions may be a useful probe for the high-density behavior of the nuclear symmetry potential.
      PCAS:
  • 加载中
  • [1] LI B A. Phys. Rev. Lett., 2002, 88: 192701[2] CHEN L W, KO CM, LI B A. Phys. Rev. C, 2011, 83: 044308[3] YONG G C, LI B A, CHEN L W, ZUO W. Phys. Rev. C, 2006,73: 034603[4] Di Toro M et al. J. Phys. G: Nucl. Phys., 2010, 37: 083101[5] ZHANG Y X et al. Phys. Rev. C, 2012, 85: 051602[6] GAO Y et al. Phys. Rev. C, 2011, 83: 047602[7] Danielewicz P et al. Science, 2002, 298(5598): 1592-1596[8] Baran V, Colonna M, Greco V, Toro M D. Phys. Rep., 2005, 410: 335[9] LI B A, CHEN L W, KO C M. Phys. Rep.,2008, 464: 113[10] Sumiyoshi K, Toki H. Astrophys. J., 1994, 422: 700[11] Lattimer J M, Prakash M. Science, 2004, 304: 536[12] Steiner A W, Prakash M, Lattimer J M et al. Phys. Rep., 2005, 411: 325[13] GAO Y, DONG J M, ZHANG H F et al. Chin. Phys. C (HEP NP), 2009, 33: 848[14] ZHANG L et al. Chin. Phys. Lett., 2011, 28: 112102[15] LI B A. Phys. Rev. C 2003, 69: 034614[16] Muller H, Serot B. Phys. Rev. C. 1995, 52: 2072[17] Baran V et al. Nucl. Phys. A, 2002, 703: 603[18] CHEN L W et al. Phys. Rev. Lett., 2003, 90: 162701[19] Shi L, Danielewicz P. Phys. Rev. C, 2003, 68: 064604[20] Scalone L, Colonna M, Toro M D. Phys. Lett. B, 1999, 461: 9[21] LI B A. Phys. Rev. C, 2001, 64: 054604[22] ZHANG L et al. Eur. Phys. J. A, 2012, 48: 30[23] Gaitanos T, Toro D M, Typel S et al. Nucl. Phys. A, 2004, 732: 24[24] GAO Y, ZHANG L, ZUO W et al. Phys. Rev. C, 2012, 86: 034611[25] YONG G C, LI B A, CHEN L W. Phys. Lett. B, 2008, 661(2-1): 82-87[26] Schutz Y et al. Nucl. Phys. A, 1997, 622: 04-477[27] Martinez G et al. Phys. Lett. B, 1999, 461: 28-29[28] Enterria D et al. Phys. Lett. B, 2002, 538: 27-28[29] Ortega R et al. Eur. Phys. J. A, 2006, 28: 161-163[30] Gassing W, Metag V, Mosel U et al. Phys. Rep., 1996, 188(6): 363-449[31] Jackson J D, Classical Electrodynamics. Wiley. NewYork, 1975. 702[32] Gan N et al. Phys. Rev. C,1994, 49(1): 298-303
  • 加载中

Get Citation
YANG Lin-Meng, GUO Wen-Jun, ZHANG Yun-Peng and ZHANG Xiao-Ji. Probing the symmetry potential with neutron-proton bremsstrahlung in heavy-ion collisions[J]. Chinese Physics C, 2014, 38(7): 074105. doi: 10.1088/1674-1137/38/7/074105
YANG Lin-Meng, GUO Wen-Jun, ZHANG Yun-Peng and ZHANG Xiao-Ji. Probing the symmetry potential with neutron-proton bremsstrahlung in heavy-ion collisions[J]. Chinese Physics C, 2014, 38(7): 074105.  doi: 10.1088/1674-1137/38/7/074105 shu
Milestone
Received: 2013-09-02
Revised: 1900-01-01
Article Metric

Article Views(551)
PDF Downloads(154)
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 symmetry potential with neutron-proton bremsstrahlung in heavy-ion collisions

    Corresponding author: GUO Wen-Jun,

Abstract: In the framework of the isospin-dependent quantum molecular dynamics transport model (QMD), the effects of symmetry potential on the collision number and the neutron-proton bremsstrahlung photon in the reactions of 40Ca+40Ca, 124Sn+124Sn, 40Ca+64Zn, 40Ca+124Sn at different incident beam energies are studied. It is found that the collision number shows moderate sensitivity to the stiffness of the symmetry potential and the number of hard photons calculated with stiff symmetry potential is obviously smaller than that with soft symmetry potential. Thus, the neutron-proton bremsstrahlung photons produced in heavy-ion collisions may be a useful probe for the high-density behavior of the nuclear symmetry potential.

    HTML

Reference (1)

目录

/

DownLoad:  Full-Size Img  PowerPoint
Return
Return