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arXiv 1902.04525hep-th
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弯曲空间中具有$R$对称性的超对称理论的量子一致性

Quantum consistency in supersymmetric theories with $R$-symmetry in curved space

Ok Song An, Jin U Kang, Jong Chol Kim, Yong Hae Ko

摘要:

讨论了四维弯曲空间中通过耦合到新的极小超引力背景场而建立的具有$U(1)_R$对称性的刚性$\mathcal N=1$超对称场论在量子水平上的相容性.通过分析$\mathcal{R}$多重态中电流算符的关联函数,我们证明了与(未破缺)超对称性的量子一致性要求$U(1)_R$反常系数为零,而反常系数只依赖于理论的场含量.这个相容性条件是在超导沃德恒等式是非反常的和真空是超对称的假设下得到的。

英文摘要:

We discuss consistency at the quantum level in the rigid $\mathcal N=1$ supersymmetric field theories with a $U(1)_R$ symmetry in four-dimensional curved space which are formulated via coupling to the new-minimal supergravity background fields. By analyzing correlation functions of the current operators in the $\mathcal{R}$-multiplet, we show that the quantum consistency with the (unbroken) supersymmetry requires the $U(1)_R$ anomaly coefficient, which depends only on the field content of the theory, to vanish. This consistency condition is obtained under the assumption that the supercurrent Ward identity is non-anomalous and that the vacuum is supersymmetric.

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