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arXiv · hep-lat/9904009

Weyl fermions on the lattice and the non-abelian gauge anomaly

Martin Lüscher
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Abstract

Starting from the Ginsparg-Wilson relation, a general construction of chiral gauge theories on the lattice is described. Local and global anomalies are easily discussed in this framework and a closed expression for the effective action can be obtained. Particular attention is paid to the non-abelian gauge anomaly, which is shown to be related to a local topological field on the lattice representing the Chern character in 4+2 dimensions.

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Martin Lüscher. 1999-05-10. Weyl fermions on the lattice and the non-abelian gauge anomaly. https://doi.org/10.1016/s0550-3213(99)00731-2

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