Moment analysis of hadronic vacuum polarization Proposal for a lattice QCD evaluation of gμ-2

I suggest a new approach to the determination of the hadronic vacuum polarization (HVP) contribution to the anomalous magnetic moment of the muon a(mu)(HVP) in lattice QCD. It is based on properties of the Mellin transform of the hadronic spectral function and their relation to the HVP self-energy in the Euclidean. I show how a(mu)(HVP) is very well approximated by a few moments associated to this Mellin transform and how these moments can be evaluated in lattice QCD, providing thus a series of tests when compared with the corresponding determinations using experimental data. (C) 2014 The Author. Published by Elsevier B.V.