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공공누리This item is licensed Korea Open Government License

Title
Kaon B Parameter from Improved Staggered Fermions in Nf=2+1 QCD
Author(s)
배태길이원종
Publication Year
2012-07-27
Abstract
WepresentacalculationofthekaonBparameterB_KusinglatticeQCD.Weuseimprovedstaggeredvalenceandseafermions,thelattergeneratedbytheMILCCollaborationwithN_f=2+1lightflavors.Tocontroldiscretizationerrors,weusefourdifferentlatticespacingsrangingdowntoa~0.045fm.ThechiralandcontinuumextrapolationsaredoneusingSU(2)Staggeredchiralperturbationtheory.Ourfinalresultis\hat{B}_K=0.727+-0.004(stat)+-0.038(syst),wherethedominantsystematicerrorisfromouruseoftruncated(one-loop)matchingfactors.
Keyword
LatticeQCD; KaonBParameter; StaggeredFermions
Journal Title
PhysicalReviewLetters
ISSN
0031-9007
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Appears in Collections:
7. KISTI 연구성과 > 학술지 발표논문
URI
https://repository.kisti.re.kr/handle/10580/14041
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