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arXiv 1608.01613hep-th
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关于矢量Schwinger模型的增广超场方法

On augmented superfield approach to vector Schwinger model

Saurabh Gupta, R. Kumar

摘要:

我们利用Bonora-Tonin超场理论的技巧导出了(1+1)维玻色化矢量Schwinger模型的离壳幂零和绝对反对易(反)BRST以及(反)协BRST对称变换.在上述对称性的推导中,我们调用了(对偶)水平性条件以及对定义在(2,2)维超流形上的超场的规范和(反)co-BRST不变量限制。我们提供了上述幂零对称(及其相应的电荷)的几何解释。我们还表示的幂零性和绝对反交换性的(反)BRST和(反)co-BRST收费的增广超场形式主义的框架内。

英文摘要:

We exploit the techniques of Bonora-Tonin superfield formalism to derive the off-shell nilpotent and absolutely anticommuting (anti-)BRST as well as (anti-)co-BRST symmetry transformations for the (1+1)-dimensional (2D) bosonized vector Schwinger model. In the derivation of above symmetries, we invoke the (dual)-horizontality conditions as well as gauge and (anti-)co-BRST invariant restrictions on the superfields that are defined onto the (2, 2)-dimensional supermanifold. We provide geometrical interpretation of the above nilpotent symmetries (and their corresponding charges). We also express the nilpotency and absolute anticommutativity of the (anti-)BRST and (anti-)co-BRST charges within the framework of augmented superfield formalism.

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