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arXiv · 1602.01767

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

T. Blum·P. A. Boyle·L. Del Debbio·R. J. Hudspith·T. Izubuchi·A. Jüttner·C. Lehner·R. Lewis·K. Maltman·M. Krstić Marinković·A. Portelli·M. Spraggs
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Abstract

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 $a_\mu^{(2)\,{\rm had},\,s}=53.1(9)\left(^{+1}_{-3}\right)\times10^{-10}$.

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T. Blum, P. A. Boyle, L. Del Debbio, R. J. Hudspith, T. Izubuchi, A. Jüttner, C. Lehner, R. Lewis, K. Maltman, M. Krstić Marinković, A. Portelli, M. Spraggs. 2016-02-04. Lattice calculation of the leading strange quark-connected contribution to the muon $g-2$. https://doi.org/10.1007/jhep04(2016)063

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