QUARK MATTER WITH NEUTRAL PION CONDENSATE

被引:24
|
作者
KUTSCHERA, M
BRONIOWSKI, W
KOTLORZ, A
机构
[1] H. Niewodniczánski Institute of Nuclear Physics, PL 31-342 Cracow
关键词
D O I
10.1016/0370-2693(90)91421-7
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The neutral pion condensate in a chirally broken phase of quark matter is studied in the sigma model with quark and meson degrees of freedom. We find that above a critical quark mass of about 200 MeV the pion-condensed phase is the ground state of the system. In this phase the up and down quark Fermi seas are oppositely polarized along the direction of the pion field wave vector. We calculate the net spin density of the up and down Fermi seas and we estimate the magnetization of the system. Astrophysical implications are briefly discussed. © 1990.
引用
收藏
页码:159 / 163
页数:5
相关论文
共 50 条
  • [21] Pion condensation of quark matter in a static Einstein universe
    D. Ebert
    K. G. Klimenko
    A. V. Tyukov
    V. C. Zhukovsky
    The European Physical Journal C, 2008, 58 : 57 - 68
  • [22] Pion condensation in quark matter with finite baryon density
    Ebert, D.
    Klimenko, K. G.
    JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS, 2006, 32 (05) : 599 - 607
  • [23] Pion condensation of quark matter in a static Einstein universe
    Ebert, D.
    Klimenko, K. G.
    Tyukov, A. V.
    Zhukovsky, V. C.
    EUROPEAN PHYSICAL JOURNAL C, 2008, 58 (01): : 57 - 68
  • [24] Nucleon sigma term and quark condensate in nuclear matter
    K. Tsushima
    K. Saito
    A. W. Thomas
    A. Valcarce
    The European Physical Journal A, 2007, 31 : 626 - 629
  • [25] Nucleon sigma term and quark condensate in nuclear matter
    Tsushima, K.
    Saito, K.
    Thomas, A. W.
    Valcarce, A.
    EUROPEAN PHYSICAL JOURNAL A, 2007, 31 (04): : 626 - 629
  • [26] Modified quark-meson-coupling model and quark condensate in nuclear matter
    Guo, H
    COMMUNICATIONS IN THEORETICAL PHYSICS, 2000, 34 (03) : 471 - 476
  • [27] POSSIBLE STRUCTURES OF PION CONDENSATE IN SYMMETRIC NUCLEAR-MATTER
    MATSUI, T
    OTOFUJI, T
    SAKAI, K
    YASUNO, M
    PROGRESS OF THEORETICAL PHYSICS, 1980, 63 (05): : 1665 - 1687
  • [28] EXCITATIONS OF THE CHARGED PION FIELD IN DENSE NUCLEAR MEDIUM WITH A NEUTRAL CONDENSATE
    RUIVO, MC
    FERREIRA, LS
    PROGRESS OF THEORETICAL PHYSICS, 1981, 65 (06): : 1941 - 1949
  • [29] Fate of pion condensation in quark matter: From the chiral limit to the physical pion mass
    Abuki, H.
    Anglani, R.
    Gatto, R.
    Pellicoro, M.
    Ruggieri, M.
    PHYSICAL REVIEW D, 2009, 79 (03):
  • [30] Neutral dense quark matter at intermediate temperature
    He, Lianyi
    Jin, Meng
    Zhuang, Pengfei
    INTERNATIONAL JOURNAL OF MODERN PHYSICS E, 2007, 16 (7-8): : 2313 - 2318