PoS - Proceedings of Science
Volume 256 - 34th annual International Symposium on Lattice Field Theory (LATTICE2016) - Poster Session
The HVP contribution to the anomalous magnetic moment of the muon
C. Davies,* B. Chakraborty, J. Koponen, P. Lepage, P. de Oliveira on behalf of HPQCD Collaboration
*corresponding author
Full text: pdf
Pre-published on: December 27, 2016
Published on: March 24, 2017
Abstract
We report on the HPQCD calculation of the u/d hadronic vacuum polarisation (HVP) contribution
to the anomalous magnetic moment of the muon ($a_{\mu}$) from full lattice QCD.
This allows us to obtain a total leading order HVP contribution from $u$, $d$, $s$, $c$ and $b$ quarks.
Our value is $666(6)(12) \times 10^{-10}$ including systematic uncertainties from quark-line
disconnected pieces and QED and isospin effects.
Our result implies a discrepancy between the experimental determination of $a_{\mu}$ and
the Standard model of $3\sigma$.
We discuss prospects for improvements to this calculation underway with the MILC and Fermilab Lattice collaborations.
DOI: https://doi.org/10.22323/1.256.0377
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