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Calculation of Tensor Susceptibility Beyond Rainbow-Ladder Approximation

机译:超出彩虹阶梯近似的张量磁化率的计算

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摘要

In this paper, we extend the calculation of tensor vacuum susceptibility in the rainbow-ladder approximation of the Dyson-Schwinger (DS) approach in Shi et al. (Phys Lett B 639:248, 2006) to that of employing the Ball-Chiu (BC) vertex. The dressing effect of the quark-gluon vertex on the tensor vacuum susceptibility is investigated. Our results show that compared with its rainbow-ladder approximation value, the tensor vacuum susceptibility obtained in the BC vertex approximation is reduced by about 10%. This shows that the dressing effect of the quark-gluon vertex is not large in the calculation of the tensor vacuum susceptibility in the DS approach.
机译:在本文中,我们扩展了Shi等人的Dyson-Schwinger(DS)方法的彩虹阶梯近似中张量真空敏感性的计算。 (Phys Lett B 639:248,2006)到采用Ball-Chiu(BC)顶点的过程。研究了夸克-胶子顶点对张量真空敏感性的修整效果。我们的结果表明,与其彩虹梯形近似值相比,在BC顶点近似中获得的张量真空敏感性降低了约10%。这表明在DS方法中计算张量真空敏感性时,夸克-胶子顶点的修整效果不大。

著录项

  • 来源
    《Few-Body Systems》 |2010年第1期|P.31-39|共9页
  • 作者单位

    Department of Physics, Nanjing Xiaozhuang College, 211171 Nanjing, China;

    Department of Physics, Nanjing University, 210093 Nanjing, China Department of Physics, Anhui Normal University, 241000 Wuhu, China;

    Department of Physics, Nanjing University, 210093 Nanjing, China Joint Center for Particle, Nuclear Physics and Cosmology, 210093 Nanjing, China;

    Department of Physics, Nanjing University, 210093 Nanjing, China Joint Center for Particle, Nuclear Physics and Cosmology, 210093 Nanjing, China;

  • 收录信息 美国《科学引文索引》(SCI);
  • 原文格式 PDF
  • 正文语种 eng
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  • 入库时间 2022-08-17 13:56:47

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