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arXiv 2208.02467hep-th
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四维N=1 SQCD中的超对称梯度流

Supersymmetric gradient flow in 4d N=1 SQCD

Daisuke Kadoh, Naoya Ukita

摘要:

提出了四维N=1超对称QCD(SQCD)的超对称梯度流。给出了Wess-Zumino规范超场和分量场的流方程。超场流方程分别定义为每个规范和物质多重态。在Wess-Zumino规范中加入一个规范固定,以规范协变的方式定义了分量场流方程。我们发现,后者方程是超对称的,在某种意义上说,换向器的流时间导数和超对称变换消失的规范变换。我们还讨论了一个简化的流,即用超对称Yang-Mills(SYM)作用量的梯度代替SQCD作用量来定义规范多重态流。

英文摘要:

A supersymmetric gradient flow for four-dimensional N=1 supersymmetric QCD (SQCD) is proposed. The flow equation is given in both the superfield and component fields of the Wess-Zumino gauge. The superfield flow equation is defined for each of the gauge and matter multiplets individually. Adding a gauge fixing, the component-field flow equation is defined in the Wess-Zumino gauge in a gauge covariant manner. We find that the latter equation is supersymmetric in a sense that the commutator of the flow time derivative and the supersymmetry transformation vanishes up to a gauge transformation. We also discuss a simplified flow by using the gradient of supersymmetric Yang-Mills (SYM) action instead of using SQCD action to define a gauge multiplet flow.

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