文章基本信息

标题：Electromagnetic Corrections to Meson Masses and the HVP
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作者：V.Guelpers ; J.Harrison ; P.A.Boyle 等
期刊名称：PoS - Proceedings of Science
印刷版ISSN：1824-8039
出版年度：2016
卷号：256
DOI：10.22323/1.256.0172
语种：English
出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：We present an exploratory study of the electromagnetic corrections to meson masses and the hadronic vacuum polarization using $N_f=2+1$ Domain Wall fermions. These corrections are estimated with two different approaches, a stochastic approach using $U(1)$ gauge configurations for the photon fields, and a perturbative approach through a QED perturbative expansion of the QCD+QED path integral. We compare results and statistical errors from both methods.