Perturbative calculation of supersymmetric gradient flow in N=1 supersymmetric QCD
Perturbative calculation of supersymmetric gradient flow in N=1 supersymmetric QCD
复制标题
N=1超对称QCD中超对称梯度流的微扰计算
DOI：
10.1093/ptep/ptac165
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发表时间：
2022
影响因子：
3.5
通讯作者：
Ukita Naoya
中科院分区：
文献类型：
--
作者：
Kadoh Daisuke;Maru Nobuhito;Suzuki Mitsuyo;Ukita Naoya
讨论了四维超对称量子色动力学(SQCD)中超对称梯度流的微扰计算。梯度流的一个显著特性是使流场相关器的紫外线发散变得温和。为了说明这一性质，我们在单圈水平上计算了SQCD中流场的两点函数，并研究了它们的UV发散结构。在边界处重规化SQCD后，流动规范超多重态的两点函数是UV-有限的。另一方面，流动物质超多重态需要额外的波函数重整化，这被发现是多重态中所有场的公因子。
We demonstrate perturbative calculations of supersymmetric gradient flow in four-dimensionalsupersymmetric quantum chromodynamics (SQCD). A remarkable property of the gradient flow is to make ultraviolet (UV) divergences of flowed field correlators milder. To illustrate this property, we calculate two-point functions for the flowed fields in SQCD at the one-loop level and investigate their UV divergence structure. After renormalizing the SQCD at the boundary, the two-point functions of flowed gauge supermultiplets are shown to be UV-finite. On the other hand, those for flowed matter supermultiplets require extra wave function renormalization, which are found to be the common factor for all the fields in the multiplets.