Pion-pole contribution to HLbL from twisted mass lattice QCD at the physical point
Abstract
We report on our computation of the pion transition form factor FP→ γ*γ* from twisted mass lattice QCD in order to determine the numerically dominant light pseudoscalar pole contribution in the hadronic light-by-light scattering contribution to the anomalous magnetic moment of the muon aμ =(g-2)μ. The pion transition form factor is computed directly at the physical point. We present first results for our estimate of the pion-pole contribution with kinematic setup for the pion at rest.
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