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arXiv 1008.2649hep-th
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拓扑有质量非阿贝尔理论:超场形式

Topologically massive non-Abelian theory: superfield formalism

S. Krishna, A. Shukla, R. P. Malik

摘要:

在四维(3 + 1)动力学非阿贝尔2-形式规范理论的背景下,利用其固有的“标量”和“矢量”规范对称性变换,将几何超场方法的成熟技巧应用于Becchi-Rouet-Stora-Typhoon(BRST)形式,导出了相应的离壳幂零和绝对反对易的BRST和反BRST对称变换.我们的方法导致推导出三个(反)BRST不变的Curci-Ferrari(CF)型的限制,被发现是负责的BRST和反BRST对称变换的绝对反交换性。我们推导出耦合拉格朗日密度尊重(反)BRST对称变换对应的“矢量”规范变换。我们还捕获(反)BRST不变性的CF型限制和耦合拉格朗日密度的框架内,我们的超场方法。当对应于“标量”和“矢量”规范对称性的(反)BRST对称变换合并在一起时,我们得到了离壳幂零(反)BRST对称变换.然而,这些离壳幂零“合并”(反)BRST对称性,被发现是不是绝对anticommuting的性质。

英文摘要:

We apply the well-established techniques of geometrical superfield approach to Becchi-Rouet-Stora-Tyutin (BRST) formalism in the context of four (3 + 1)-dimensional (4D) dynamical non-Abelian 2-form gauge theory by exploiting its inherent "scalar" and "vector" gauge symmetry transformations and derive the corresponding off-shell nilpotent and absolutely anticommuting BRST and anti-BRST symmetry transformations. Our approach leads to the derivation of three (anti-) BRST invariant Curci-Ferrari (CF)-type restrictions that are found to be responsible for the absolute anticommutativity of the BRST and anti-BRST symmetry transformations. We derive the coupled Lagrangian densities that respect the (anti-) BRST symmetry transformations corresponding to the "vector" gauge transformations. We also capture the (anti-) BRST invariance of the CF-type restrictions and coupled Lagrangian densities within the framework of our superfield approach. We obtain, furthermore, the off-shell nilpotent (anti-) BRST symmetry transformations when the (anti-) BRST symmetry transformations corresponding to the "scalar" and "vector" gauge symmetries are merged together. These off-shell nilpotent "merged" (anti-) BRST symmetries are, however, found to be not absolutely anticommuting in nature.

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