Effective Lagrangian for strongly coupled domain wall fermions

Federico Berruto, Richard C. Brower, Benjamin Svetitsky

Research output: Contribution to journalArticlepeer-review

Abstract

We derive the effective Lagrangian for mesons in lattice gauge theory with domain-wall fermions in the strong-coupling and large-Nc limits. We use the formalism of supergroups to deal with the Pauli-Villars fields, needed to regulate the contributions of the heavy fermions. We consider the spectrum of pseudo-Goldstone bosons and show that domain wall fermions are doubled and massive in this regime. Since we take the extent and lattice spacing of the fifth dimension to infinity and zero, respectively, our conclusions apply also to overlap fermions.

Original languageEnglish
Article number114504
Number of pages13
JournalPhysical review D
Volume64
Issue number11
DOIs
StatePublished - 1 Dec 2001
Externally publishedYes

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