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arXiv · hep-lat/9809026

Partial Restoration of Flavor Symmetry for Chiral Staggered Fermions

Weonjong Lee·Stephen Sharpe
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Abstract

At non-zero lattice spacing the flavor symmetry of staggered fermions is broken to a discrete subgroup. We show that in the chiral limit the flavor symmetry of the pion effective Lagrangian enlarges to an SO(4) subgroup of the continuum SU(4) symmetry. This provides an explanation for observed degeneracies in the pion spectrum.

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Weonjong Lee, Stephen Sharpe. 1998-09-04. Partial Restoration of Flavor Symmetry for Chiral Staggered Fermions. https://doi.org/10.1016/s0920-5632(99)85035-x

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