Influence of coupling constants on nuclear symmetry energy

  • By studying the energy of neutron star matter, we discuss the nuclear symmetry energy at different baryon densities and different coupling constants in the relativistic mean field approximation. The results show that the symmetry energy increases with baryon density at various coupling constants and incompressibilities. Furthermore, the symmetry energy at saturation density increases with increasing incompressibility at fixed d, and decreases at fixed c. Specifically, when coupling constants gv and gs are fixed, respectively, the symmetry energy has a little change with increasing incompressibility. It is demonstrated that the NN coupling constants have greater influences on the symmetry energy than the self-coupling constants.
      PCAS:
  • 加载中
  • [1] Li B A, Steiner A W. Phys. Lett. B, 2006, 642: 436[2] Krastev P G, LI B A. Phys. Rev. C, 2007, 76: 055804[3] LI B A, CHEN L W, KO C M. Phys. Rep., 2008, 464: 113[4] Dieperink A E L, Dewulf Y, Van Neck D et al. Phys. Rev. C, 2003, 68: 064307[5] Horowitz C J, Piekarewicz J. Phys. Rev. C, 2002, 66: 055803[6] Typel S, Brown B A. Phys. Rev. C, 2001, 64: 027302[7] Furnstahl R J. Nucl. Phys. A, 2002, 706: 85[8] Karataglidis S, Amos K, Brown B A et al. Phys. Rev. C, 2002, 65: 044306[9] Psonis V P, Moustakidis Ch C, Massen S E. Mod. Phys. Lett. A, 2007, 22: 1233-1254[10] Shetty D V, Yennello S J. Pramana-Journal of Physics, 2010, 75: 259-269[11] CHEN Lie-Wen, KO Che-Ming, LI Bao-An. Phys. Rev. C, 2007, 76: 054316[12] Walecka J D. Ann. Phys. (NY), 1974, 83: 491[13] Serot B D, Walecka J D. Adv. Nucl. Phys., 1986, 16: 1[14] Reinhard P G. Rep. Prog. Phys., 1989, 52: 439[15] Ring P. Prog. Part. Nucl. Phys., 1996, 37: 193[16] Serot B D, Walecka J D. Int. J. Mod. Phys. E, 1997, 6: 515[17] Bender M, Heenen P H, Reinhard P G. Rev. Mod. Phys., 2003, 75: 121[18] Furnstahl R J. Lect. Notes Phys., 2004, 641: 1[19] MENG J, Toki H, ZHOU S G et al. Prog. Part. Nucl. Phys., 2006, 57: 470[20] LI B A, Udo Schroder W. Isospin Physics in Heavy-Ion Collisions at Intermediate Energies. New York: Nova Science Publishers, Inc., 2001[21] LI B A, KO C M, Bauer W. Int. J. Mod. Phys. E, 1998, 7: 147[22] XU Chang, LI B A. Phys. Rev. C, 2010, 81: 044603[23] Myers W D, Swiatecki W J. Nucl. Phys. A, 1966, 81: 1[24] Pomorski K, Dudek J. Phys. Rev. C, 2003, 67: 044316[25] CHEN L W, KO C M, LI B A. Phys. Rev. C, 2005, 72: 064309
  • 加载中

Get Citation
LIU Bei-Bei, OUYANG Fei and CHEN Wei. Influence of coupling constants on nuclear symmetry energy[J]. Chinese Physics C, 2013, 37(4): 044103. doi: 10.1088/1674-1137/37/4/044103
LIU Bei-Bei, OUYANG Fei and CHEN Wei. Influence of coupling constants on nuclear symmetry energy[J]. Chinese Physics C, 2013, 37(4): 044103.  doi: 10.1088/1674-1137/37/4/044103 shu
Milestone
Received: 2012-05-22
Revised: 1900-01-01
Article Metric

Article Views(1423)
PDF Downloads(362)
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:

Influence of coupling constants on nuclear symmetry energy

    Corresponding author: LIU Bei-Bei,
    Corresponding author: CHEN Wei,

Abstract: By studying the energy of neutron star matter, we discuss the nuclear symmetry energy at different baryon densities and different coupling constants in the relativistic mean field approximation. The results show that the symmetry energy increases with baryon density at various coupling constants and incompressibilities. Furthermore, the symmetry energy at saturation density increases with increasing incompressibility at fixed d, and decreases at fixed c. Specifically, when coupling constants gv and gs are fixed, respectively, the symmetry energy has a little change with increasing incompressibility. It is demonstrated that the NN coupling constants have greater influences on the symmetry energy than the self-coupling constants.

    HTML

Reference (1)

目录

/

DownLoad:  Full-Size Img  PowerPoint
Return
Return