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arXiv 1106.3764hep-th
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Freedman-Townsend模型幂零对称性的超场方法:新特征

Superfield Approach to Nilpotent Symmetries of the Freedman-Townsend Model: Novel Features

R. P. Malik

摘要:

利用拓扑有质量非阿贝尔理论的Freedman-Townsend(FT)模型的(1-形式)Yang-Mills(YM)规范变换,对FT模型进行了Becchi-Rouet-Stora-Tybert(BRST)分析,得到了与动力学非阿贝尔2-形式理论完全不同的新特征.我们在这里挖掘Bonora-Tonin的超场方法的“增强”版本对BRST形式主义的潜力和力量,以导出完整的离壳幂零和绝对反对易(反)BRST对称变换,其中,除了水平性条件(HC)之外,理论上,我们不得不利用(超)上适当的规范不变限制(GIR),场,用于导出所有相关场的适当对称变换。我们比较我们的关键结果与其他这样的尝试,讨论本模型的框架内的BRST形式主义。

英文摘要:

We perform the Becchi-Rouet-Stora-Tyutin (BRST) analysis of the Freedman-Townsend (FT) model of topologically massive non-Abelian theory by exploiting its (1-form) Yang-Mills (YM) gauge transformations to show the existence of some novel features that are totally different from the results obtained in such a kind of consideration carried out for the dynamical non-Abelian 2-form theory. We tap here the potential and power of the "augmented" version of Bonora-Tonin's superfield approach to BRST formalism to derive the full set of off-shell nilpotent and absolutely anticommuting (anti-)BRST symmetry transformations where, in addition to the horizontality condition (HC), we are theoretically compelled to exploit the appropriate gauge-invariant restrictions (GIRs) on the (super)fields for the derivation of the appropriate symmetry transformations for all the relevant fields. We compare our key results with that of the other such attempt for the discussion of the present model within the framework of BRST formalism.

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