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arXiv · 0809.1219

Scaling behavior and sea quark dependence of pion spectrum with HYP-smeared staggered fermions

David Adams·Taegil Bae·Hyung-Jin Kim·Jongjeong Kim·Kwangwoo Kim·Boram Yoon·Weonjong Lee·Chulwoo Jung·Stephen R. Sharpe
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Abstract

We study the pion spectrum (and in particular taste-symmetry breaking within it) using HYP-smeared valence staggered fermions on the coarse and fine MILC lattices (which have asqtad staggered sea quarks). We focus on the dependence on lattice spacing and sea-quark mass. We also update our results on source dependence. Our main conclusion is that on the MILC fine lattices the appropriate power-counting for SU(3) staggered chiral perturbation theory may have discretization errors entering at next-to-leading order rather than at leading-order.

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David Adams, Taegil Bae, Hyung-Jin Kim, Jongjeong Kim, Kwangwoo Kim, Boram Yoon, Weonjong Lee, Chulwoo Jung, Stephen R. Sharpe. 2008-09-10. Scaling behavior and sea quark dependence of pion spectrum with HYP-smeared staggered fermions. https://arxiv.org/abs/0809.1219

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