Speaker
Description
The error budget of the theory calculation of the muon 𝑔−2 is dominated by two hadronic contributions: the Hadronic Vacuum Polarization (HVP) and the Hadronic Light-by-Light (HLbL) scattering. Reducing the error on these contributions is essential to match the future experimental precision.
In this talk, we present a lattice calculation of the three light pseudoscalar meson ($\pi_0$, $\eta$ and $\eta'$) transition form factors. We compare our results for the form factors with the experimental measurements. These form factors are an important input for the determination of the pseudoscalar-pole contributions to HLbL scattering in the muon 𝑔−2 ($𝑎^{\text{p−pole}}_{\text{HLbL}}$). We compute $𝑎^{\text{p−pole}}_{\text{HLbL}}$ and compare it to the other current estimates.
