Lattice calculation of the leading strange quark-connected contribution to the muon $g-2

JHEP 1604 (2016) 063 We present results for the leading hadronic contribution to the muon anomalous magnetic moment due to strange quark-connected vacuum polarisation effects. Simulations were performed using RBC--UKQCD's $N_f=2+1$ domain wall fermion ensembles with physical light sea quark mas...

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Main Authors Blum, T, Boyle, P. A, Del Debbio, L, Hudspith, R. J, Izubuchi, T, Jüttner, A, Lehner, C, Lewis, R, Maltman, K, Marinković, M. Krstić, Portelli, A, Spraggs, M
Format Journal Article
LanguageEnglish
Published 04.02.2016
Subjects
Physics - High Energy Physics - Lattice
Physics - High Energy Physics - Phenomenology
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Summary:JHEP 1604 (2016) 063 We present results for the leading hadronic contribution to the muon anomalous magnetic moment due to strange quark-connected vacuum polarisation effects. Simulations were performed using RBC--UKQCD's $N_f=2+1$ domain wall fermion ensembles with physical light sea quark masses at two lattice spacings. We consider a large number of analysis scenarios in order to obtain solid estimates for residual systematic effects. Our final result in the continuum limit is $a_\mu^{(2)\,{\rm had},\,s}=53.1(9)\left(^{+1}_{-3}\right)\times10^{-10}$.
DOI:10.48550/arxiv.1602.01767