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arXiv 0709.3770hep-th
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变形N=(1,1)超空间中的规范理论

Gauge theory in deformed N=(1,1) superspace

I. L. Buchbinder, E. A. Ivanov, O. Lechtenfeld, I. B. Samsonov, B. M. Zupnik

摘要:

本文综述了四维欧氏调和超空间中N=(1,1)超对称理论的非反对易Q-形变。这些变形保持手征性和谐波格拉斯曼解析性。伴随场论作为弦论在特定背景下的低能极限而产生,并推广了Moyal变形超对称场论。Q变形理论的一个特征是欧几里德超空间手征扇区中超对称性的半破缺。我们的主要焦点是手征单重态Q-形变,它的特点是保持SO(4)自旋(4)的“洛伦兹”对称性和SU(2)的R-对称性。我们给出了变形N=(1,0)超对称规范理论的超场和分量结构,以及耦合到规范超场的超多重态:不变作用量、变形变换规则等,讨论了这些模型的量子性质,并证明了它们在阿贝尔情形下的可重整化性.对于阿贝尔规范超场背景中的荷电超多重态,我们构造了变形全纯有效作用量。

英文摘要:

We review the non-anticommutative Q-deformations of N=(1,1) supersymmetric theories in four-dimensional Euclidean harmonic superspace. These deformations preserve chirality and harmonic Grassmann analyticity. The associated field theories arise as a low-energy limit of string theory in specific backgrounds and generalize the Moyal-deformed supersymmetric field theories. A characteristic feature of the Q-deformed theories is the half-breaking of supersymmetry in the chiral sector of the Euclidean superspace. Our main focus is on the chiral singlet Q-deformation, which is distinguished by preserving the SO(4) Spin(4) ``Lorentz'' symmetry and the SU(2) R-symmetry. We present the superfield and component structures of the deformed N=(1,0) supersymmetric gauge theory as well as of hypermultiplets coupled to a gauge superfield: invariant actions, deformed transformation rules, and so on. We discuss quantum aspects of these models and prove their renormalizability in the abelian case. For the charged hypermultiplet in an abelian gauge superfield background we construct the deformed holomorphic effective action.

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