https://doi.org/10.1140/epjs/s11734-022-00707-2
Regular Article
Supersymmetric gradient flow in 4d 
SQCD
1
Faculty of Sciences and Engineering, Doshisha University, 610-0394, Kyoto, Japan
2
Center for Computational Sciences, University of Tsukuba, 305-8577, Tsukuba, Ibaraki, Japan
Received:
31
July
2022
Accepted:
20
October
2022
Published online:
5
December
2022
A supersymmetric gradient flow for four-dimensional 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 using the gradient of supersymmetric Yang–Mills (SYM) action instead of using SQCD action to define a gauge multiplet flow.
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