Improvement of the pion spectrum with HYP-smeared staggered fermions

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dc.creatorBae, Taegil
dc.creatorAdams, David
dc.creatorJung, Chulwoo
dc.creatorKim, Hyung-Jin
dc.creatorKim, Jongjeong
dc.creatorKim, Kwangwoo
dc.creatorLee, Weonjong
dc.creatorSharpe, Stephen R.
dc.date2007-09-28
dc.date.accessioned2026-07-07T11:53:17Z
dc.date.available2026-07-07T11:53:17Z
dc.descriptionWe extend our previous study of taste-symmetry breaking using HYP-smeared staggered fermions in two ways. First, we improve the statistics of a comparison of unimproved and HYP-smeared staggered fermions on quenched lattices with $a\approx 0.1 $fm. This allows us to obtain a signal for all pion tastes, rather than just a subset, and thus to make a complete comparison. In addition, it allows us to differentiate between wall and local sources. Second, we compare HYP-smeared valence quarks to asqtad valence quarks on 2+1 flavor unquenched MILC lattices. We find that taste breaking is substantially reduced by HYP-smearing, bringing the size of this discretization effect (which is the dominant such effect with staggered fermions) down to the size expected generically for any fermion type.
dc.description7 pages, 7 figures
dc.identifierhttps://arxiv.org/abs/0710.0017
dc.identifierhttp://arxiv.org/abs/0710.0017
dc.identifierPoSLAT2007:089,2007
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/204485
dc.subjectHigh Energy Physics - Lattice
dc.titleImprovement of the pion spectrum with HYP-smeared staggered fermions
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