# One-loop perturbative coupling of A and A☆ through the chiral overlap operator

```@article{Makino2017OneloopPC,
title={One-loop perturbative coupling of A and A☆ through the chiral overlap operator},
author={Hiroki Makino and Okuto Morikawa and Hiroshi Suzuki},
journal={Progress of Theoretical and Experimental Physics},
year={2017},
volume={2017}
}```
• Published 17 April 2017
• Physics
• Progress of Theoretical and Experimental Physics
We study the one-loop effective action defined by the chiral overlap operator in the four-dimensional lattice formulation of chiral gauge theories by Grabowska and Kaplan. In the tree-level continuum limit, the left-handed component of the fermion is coupled only to the original gauge field~\$A\$, while the right-handed one is coupled only to~\$A_\star\$, which is given by the gradient flow of~\$A\$ with infinite flow time. In this paper, we show that the continuum limit of the one-loop effective…
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