Chiral symmetry breaking in Abelian-projected SU(2) lattice gauge theory.
Chiral symmetry breaking in Abelian-projected SU(2) lattice gauge theory.
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阿贝尔投影 SU(2) 晶格规范理论中的手性对称性破缺。
DOI：
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发表时间：
1995
期刊：
影响因子：
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通讯作者：
Woloshyn
中科院分区：
文献类型：
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作者：
Woloshyn
在淬火SU（2）格点规范理论中，用阿贝尔规范场在最大阿贝尔规范和场强规范中的投影，计算了手征对称性破缺参数。最大阿贝尔规范投影场导致手征凝聚值，这是非常相似的完整的非阿贝尔理论。赝标和矢量介子的计算和发现被复制的使用最大阿贝尔规范场的小夸克质量。在场强规范中，阿贝尔投影场给出的手征凝聚与强耦合（{beta}{lt}1）规范理论的结果非常相似：手征凝聚对{beta}和夸克质量不敏感，因此严重违反标度。
Chiral-symmetry-breaking parameters are calculated in quenched SU(2) lattice gauge theory and with Abelian gauge fields projected in the maximal Abelian gauge and in the field-strength gauge. Maximal Abelian gauge-projected fields lead to chiral condensate values which are quite similar to those of the full non-Abelian theory. Pseudoscalar and vector meson correlators are calculated and found to be reproduced by the use of maximal Abelian gauge fields for small quark masses. In the field-strength gauge, Abelian-projected fields give a chiral condensate which closely resembles the results of strongly coupled ({beta}{lt}1) gauge theory: the chiral condensate is insensitive to {beta} and the quark mass and hence violates scaling badly.