Lattice regularized chiral perturbation theory
Bugra Borasoy, Randy Lewis, Pierre-Philippe A. Ouimet
TL;DR
This paper discusses the formulation of chiral perturbation theory on a spacetime lattice, exploring its motivations, explicit Lagrangian, and connection to lattice QCD via the Wess-Zumino-Witten term.
Contribution
It introduces a lattice regularization of chiral perturbation theory and examines its relation to lattice QCD, including the role of the Wess-Zumino-Witten term.
Findings
Lattice regularized chiral perturbation theory can be explicitly constructed.
The connection between lattice chiral perturbation theory and lattice QCD is clarified.
The role of the Wess-Zumino-Witten term in this context is analyzed.
Abstract
Chiral perturbation theory can be defined and regularized on a spacetime lattice. A few motivations are discussed here, and an explicit lattice Lagrangian is reviewed. A particular aspect of the connection between lattice chiral perturbation theory and lattice QCD is explored through a study of the Wess-Zumino-Witten term.
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