# HISQ 2+1+1 light quark hadronic vacuum polarization at the physical   point

**Authors:** Christopher Aubin, Thomas Blum, Maarten Golterman, Chulwoo Jung,, Santiago Peris, and Cheng Tu

arXiv: 1812.03334 · 2018-12-11

## TL;DR

This paper computes the light quark vacuum polarization using HISQ fermions at the physical point to refine the theoretical estimate of the muon anomalous magnetic moment, utilizing three ensembles for continuum extrapolation.

## Contribution

It provides a new lattice QCD calculation of the light quark vacuum polarization at the physical point with 2+1+1 flavors, contributing to muon g-2 precision.

## Key findings

- Consistent with recent literature results
- Uses three ensembles for continuum limit
- Improves theoretical precision of muon g-2

## Abstract

We report on the computation of the light quark vacuum polarization with 2+1+1 flavors of H ISQ fermions at the physical point and its contribution to the muon anomalous magnetic moment. Three ensembles, generated by the MILC collaboration, are used to take the continuum limit. We compare our result with recent ones in the literature.

## Full text

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## Figures

11 figures with captions in the complete paper: https://tomesphere.com/paper/1812.03334/full.md

## References

10 references — full list in the complete paper: https://tomesphere.com/paper/1812.03334/full.md

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Source: https://tomesphere.com/paper/1812.03334