文章基本信息

标题：Disconnected hadronic contribution to the muon magnetic moment at the physical point
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作者：T.Kawanai ; Budapest-Marseille-Wuppertal Collaboration ; S.Borsanyi 等
期刊名称：PoS - Proceedings of Science
印刷版ISSN：1824-8039
出版年度：2016
卷号：256
DOI：10.22323/1.256.0171
语种：English
出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：We compute the slope and curvature, at vanishing four-momentum transfer squared, of the disconnected contribution of the leading order hadron vacuum polarization function, using lattice QCD. Calculations are performed with $2+1+1$ flavors of staggered fermions directly at the physical values of the quark masses and in volumes of linear extent larger than $6$~fm. The continuum limit is carried out using five different lattice spacings.