English

HLbL contribution to the muon g-2 using twisted-mass fermions at the physical point

High Energy Physics - Lattice 2025-12-25 v1

Abstract

We present updated results for the hadronic light-by-light (HLbL) contribution to the muon anomalous magnetic moment. The calculations are based on ETMC's Nf=2+1+1N_f=2+1+1 Wilson-clover twisted-mass ensembles at the physical point. We perform continuum extrapolations for the strange- and charm-quark connected contributions and report on our results for the light-quark connected and light-quark 2+2 disconnected contributions at one lattice spacing.

Keywords

Cite

@article{arxiv.2512.21155,
  title  = {HLbL contribution to the muon g-2 using twisted-mass fermions at the physical point},
  author = {N. Kalntis and G. Kanwar and M. Petschlies and S. Romiti and U. Wenger},
  journal= {arXiv preprint arXiv:2512.21155},
  year   = {2025}
}