Description of the gluon condensate.

Description of the gluon condensate.
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DOI:
10.1103/physrevd.34.1591
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发表时间:
1986-09
期刊:
Physical review. D, Particles and fields
影响因子:
--
通讯作者:
Celenza;Shakin
Celenza;Shakin
中科院分区:
其他
文献类型:
--
作者:
Celenza;Shakin

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我们利用胶子凝聚的序参量发展了一个有效的QCD拉格朗日量。(可以用金斯堡-朗道超导理论作一个有用的类比。)在这项工作中,序参数被识别的平均值的低动量分量的矢量势。该理论是制定,只有一个单一的序参量,它描述了凝聚体(所有颜色)中的胶子对的数量,是相关的。这个序参数成为空间依赖的夸克的存在下,得到一个动力学模型形成的强子作为非拓扑孤子解决方案的有效拉格朗日量的模型。
We develop an effective Lagrangian for QCD in terms of order parameters of the gluon condensate. (A useful analogy to the Ginzburg-Landau theory of superconductivity may be made.) In this work the order parameters are identified with averages of the low-momentum components of the vector potential. The theory is formulated such that only a single order parameter, which describes the number of gluon pairs in the condensate (of all colors), is relevant. This order parameter becomes spatially dependent in the presence of quarks and one obtains a dynamical model for the formation of hadrons as nontopological soliton solutions of the effective Lagrangian of our model.