Massless Decoupled Doublers: Chiral Yukawa Models and Chiral Gauge Theories

Details Massless Decoupled Doublers: Chiral Yukawa Models and Chiral Gauge Theories Massless Decoupled Doublers: Chiral Yukawa Models and Chiral Gauge Theories

1992-06-03

arxiv.org/abs/hep-lat/9206005v1

Physics

High Energy Physics

High Energy Physics - Lattice

11 pages

Scientific paper

10.1016/0920-5632(92)90018-N

We present a new method for regularizing chiral theories on the lattice. The arbitrariness in the regularization is used in order to decouple massless replica fermions. A continuum limit with only one fermion is obtained in perturbation theory and a Golterman-Petcher like symmetry related to the decoupling of the replicas in the non-perturbative regime is identified. In the case of Chiral Gauge Theories gauge invariance is broken at the level of the regularization, so our approach shares many of the characteristics of the Rome approach.

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