One-gluon-exchange effect on the properties of quark matter and strange stars

  • We present a modified version of quark mass scaling via considering the important one-gluon-exchange interaction between quarks in the quark mass density-dependent model. The properties of strange quark matter and the structure of strange stars are then studied with the new scaling and a self-consistent thermodynamic treatment. It is found that the one-gluon-exchange effect lowers the system energy considerably, makes the equation of state stiffer, and the sound velocity tends to the ultra-relativistic value faster, which make the biggest value of the maximum mass of strange stars become as big as approximately 2 times the solar mass, in accordance with the latest astronomical observations.
      PCAS:
  • 加载中
  • [1] Bodmer A R. Phys. Rev. D, 1971, 4: 1601[2] Witten E. Phys. Rev. D, 1984, 30: 272[3] Farhi E, Jaffe R L. Phys. Rev. D, 1984, 30: 2379[4] Madsen J, Jensen Dan M, Christiansen M B. Phys. Rev. D, 1993, 47: 5156; Phys. Rev. D, 1994, 50: 3328; Phys. Rev. C, 1996, 53: 1883[5] PENG Guang-Xiong, NING Ping-Zhi, CHIANG Huan-Ching. Phys. Rev. C, 1997, 56: 491[6] PENG Guang-Xiong et al. Phys. Rev. C, 1999, 59: 3452[7] Parija B C. Phys. Rev. C, 2003, 48: 2483[8] WEN Xin-Jian et al. Phys. Rev. C, 2010, 82: 025809[9] Madsen J. Phys. Rev. Lett., 1998, 81: 3311[10] For a recent review, see Weiner R M. Int. J. Mod. Phys. E, 2006, 15: 37, and quoted therein[11] PENG Guang-Xiong et al. Phys. Rev. C, 1999, 61: 015201[12] PENG Guang-Xiong, CHIANG Huan-Ching, NING Ping-Zhi. Phys. Rev. C, 2000, 62: 025801[13] WANG Ping. Phys. Rev. C, 2000, 62: 015204[14] ZHANG Yun, SU Ru-Keng. Phys. Rev. C, 2002, 65: 035202[15] WEN Xin-Jian et al. Phys. Rev. C, 2005, 72: 015204[16] MAO H et al. Phys. Rev. C, 2006, 74: 055204[17] WU Chen et al. Phys. Rev. C, 2008, 77: 015203[18] YIN Shao-Yu, SU Ru-Keng. Phys. Rev. C, 2008, 77: 055204[19] PENG Guang-Xiong, LI Ang, Lomberto U. Phys. Rev. C, 2008, 77: 065807[20] Fowler G N, Raha S, Weiner R M. Z. Phys. C, 1981, 9: 271[21] Chakrabarty S, Raha S, Sinha B. Phys. Lett. B, 1989, 229: 112; Chakrabaty S. Phys. Rev. D, 1991, 43: 627; Phys. Rev. D, 1993, 48: 1409[22] Benvenuto O G, Lugones G. Phys. Rev. D, 1995, 51: 1989; Lugones G, Benvenuto O G, 1995, 52: 1276[23] WEN Xin-Jian, PENG Guang-Xiong, CHEN Yue-De. J. Phys. G, 2007, 34: 1697[24] WEN Xin-Jian, PENG Guang-Xiong, SHEN Peng-Nian. Int. J. Mod. Phys. A, 2007, 22: 1649[25] Modarres M, Gholizade H. Int. J. Mod. Phys. E, 2008, 17: 1335[26] ZHANG Yun et al. Europhys. Lett., 2001, 56: 361; ZHANG Yun, SU Ru-Keng. Phys. Rev. C, 2003, 67: 015202[27] PENG Guang-Xiong et al. Int. J. Mod. Phys. A, 2003, 18: 3151[28] CHEN Shi-Wu, PENG Guang-Xiong. Commun. Theor. Phys., 2012, 57: 1037[29] YAO W M et al. J. Phys. G, 2006, 33: 1[30] Shirkov D V, Solovtsov I L. JINR Rapid Commun., 1996, 76: 5[31] LAI Xiao-Yu, XU Ren-Xin. Mon. Not. R. Astron. Soc., 2009, 398: L31—L35[32] LAI Xiao-Yu, XU Ren-Xin. Astroparticle Physics, 2009, 31: 128[33] Freire P C C et al. The Astrophysical Journal, 2008, 679: 1433[34] LI Ang et al. Mon. Not. R. Astron. Soc., 2010, 402: 2715[35] Demorest P et al. Nature, 2010, 467: 1081
  • 加载中

Get Citation
CHEN Shi-Wu, GAO Li and PENG Guang-Xiong. One-gluon-exchange effect on the properties of quark matter and strange stars[J]. Chinese Physics C, 2012, 36(10): 947-953. doi: 10.1088/1674-1137/36/10/005
CHEN Shi-Wu, GAO Li and PENG Guang-Xiong. One-gluon-exchange effect on the properties of quark matter and strange stars[J]. Chinese Physics C, 2012, 36(10): 947-953.  doi: 10.1088/1674-1137/36/10/005 shu
Milestone
Received: 2012-02-24
Revised: 1900-01-01
Article Metric

Article Views(1813)
PDF Downloads(371)
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:

One-gluon-exchange effect on the properties of quark matter and strange stars

Abstract: We present a modified version of quark mass scaling via considering the important one-gluon-exchange interaction between quarks in the quark mass density-dependent model. The properties of strange quark matter and the structure of strange stars are then studied with the new scaling and a self-consistent thermodynamic treatment. It is found that the one-gluon-exchange effect lowers the system energy considerably, makes the equation of state stiffer, and the sound velocity tends to the ultra-relativistic value faster, which make the biggest value of the maximum mass of strange stars become as big as approximately 2 times the solar mass, in accordance with the latest astronomical observations.

    HTML

Reference (1)

目录

/

DownLoad:  Full-Size Img  PowerPoint
Return
Return