Modified approach for calculating vacuum susceptibility

被引：37
作者：
Zong, HS [1 ]
Hou, FY
Sun, WM
Ping, JL
Zhao, EG
机构：
[1] Nanjing Univ, Dept Phys, Nanjing 210093, Peoples R China
[2] Joint Ctr Particle Nucl Phys & Cosmol, Nanjing 210093, Peoples R China
[3] CCAST World Lab, Beijing 100080, Peoples R China
[4] Nanjing Normal Univ, Dept Phys, Nanjing 210097, Peoples R China
[5] Acad Sinica, Inst Teoret Phys, Beijing 100080, Peoples R China
来源：
PHYSICAL REVIEW C | 2005年 / 72卷 / 03期
关键词：
D O I：
10.1103/PhysRevC.72.035202
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
By differentiating the dressed quark propagator with respect to a constant external field, the linear response of the nonperturbative dressed quark propagator in the presence of the constant external field can be obtained. From this general method, taking the vector vacuum susceptibility as an illustration, we one extract a model-independent expression for the vacuum susceptibility in the quantum chromodynamical (QCD) sum rule two-point external field formula. This expression for the vacuum susceptibility is quite different from that given in the previous literature. The numerical values of the vector vacuum susceptibility are calculated within the framework of the rainbow-ladder approximation of the Dyson-Schwinger approach. A comparison with the results of the previous approaches is given.
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页数：7
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共 55 条
  • [41] NONLOCAL CONDENSATES AND QCD SUM-RULES FOR THE PION WAVE-FUNCTION
    MIKHAILOV, SV
    RADYUSHKIN, AV
    [J]. PHYSICAL REVIEW D, 1992, 45 (05): : 1754 - 1759
  • [42] Mixed quark-gluon condensate from instantons
    Polyakov, MV
    Weiss, C
    [J]. PHYSICS LETTERS B, 1996, 387 (04) : 841 - 847
  • [43] Roberts C. D., 1994, Progress in Particle and Nuclear Physics, V33, P477, DOI 10.1016/0146-6410(94)90049-3
  • [44] THE EFFECTIVE ACTION FOR THE GOLDSTONE MODES IN A GLOBAL COLOR SYMMETRY MODEL OF QCD
    ROBERTS, CD
    CAHILL, RT
    PRASCHIFKA, J
    [J]. ANNALS OF PHYSICS, 1988, 188 (01) : 20 - 60
  • [45] Dyson-Schwinger equations: Density, temperature and continuum strong QCD
    Roberts, CD
    Schmidt, SM
    [J]. PROGRESS IN PARTICLE AND NUCLEAR PHYSICS, VOL 45 SUPPL 1, 2000, 45 : S1 - S103
  • [46] A BOSONIZATION OF QCD AND REALIZATIONS OF CHIRAL SYMMETRY
    ROBERTS, CD
    CAHILL, RT
    [J]. AUSTRALIAN JOURNAL OF PHYSICS, 1987, 40 (04): : 499 - 517
  • [47] Tandy PC, 1997, PROG PART NUCL PHYS, V39, P117, DOI 10.1016/S0146-6410(97)00043-4
  • [48] Tensor susceptibility of the QCD vacuum from an effective quark-quark interaction
    Yang, HT
    Zong, HS
    Ping, HL
    Wang, F
    [J]. PHYSICS LETTERS B, 2003, 557 (1-2) : 33 - 37
  • [49] Vacuum condensates in the global color symmetry model -: art. no. 055208
    Zong, HS
    Lü, XF
    Gu, JZ
    Chang, CH
    Zhao, EG
    [J]. PHYSICAL REVIEW C, 1999, 60 (05) : 4
  • [50] Zong HS, 2000, COMMUN THEOR PHYS, V34, P563
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