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- Title
- Kaon B Parameter from Improved Staggered Fermions in Nf=2+1 QCD
- 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
- Files in This Item:
- There are no files associated with this item.
- Appears in Collections:
- 7. KISTI 연구성과 > 학술지 발표논문
