Speaker
Description
The uncertainties in the muon anomalous magnetic moment are dominated by the hadronic contributions, i.e. hadronic vacuum polarization (HVP) and hadronic light-by-light (HLbL) scattering. The discrepancies among different data sets of cross section within the data-driven dispersive method and with lattice QCD are still an open problem. This presentation focuses on the dispersive evaluation of hadronic contributions and the efforts to further reduce the error on the HLbL and HVP terms. Particularly the benefits of a new scheme for the HLbL is high-lighted which will consistently allow for higher intermediate states. Current work concentrates on the sub-processes including tensor-meson and two-pion intermediate states to the $\gamma^*\gamma^*\gamma\rightarrow\pi\pi$ process in the context of the HLbL term, which will also be relevant for radiative corrections to HVP.
| Are you an early career researcher? | Yes, a PhD student |
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