On calculating disconnected-type hadronic light-by-light scattering diagrams from lattice QCD

Masashi Hayakawa; Thomas Blum; Norman Christ; Taku Izubuchi; Luchang Jin; Christoph Lehner

On calculating disconnected-type hadronic light-by-light scattering diagrams from lattice QCD

High Energy Physics - Lattice 2015-11-20 v2 High Energy Physics - Phenomenology

Authors: Masashi Hayakawa , Thomas Blum , Norman Christ , Taku Izubuchi , Luchang Jin , Christoph Lehner

Abstract

For reliable comparison of the standard model prediction to the muon g-2 with its experimental value, the hadronic light-by-light scattering (HLbL) contribution must be calculated by lattice QCD simulation. HLbL contribution has many types of disconnected-type diagrams. Here, we start with recalling the point that must be taken care of in every method to calculate them by lattice QCD, and present one concrete method called nonperturbative QED method.

Keywords

muon g-2 hadronic light-by-light scattering lattice QCD disconnected diagrams nonperturbative QED method standard model

Cite

@article{arxiv.1511.01493,
  title  = {On calculating disconnected-type hadronic light-by-light scattering diagrams from lattice QCD},
  author = {Masashi Hayakawa and Thomas Blum and Norman Christ and Taku Izubuchi and Luchang Jin and Christoph Lehner},
  journal= {arXiv preprint arXiv:1511.01493},
  year   = {2015}
}

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7 pages, 12 figures. 2 tables, Proceedings of the 33rd International Symposium on Lattice Field Theory, July 14-18, 2015, Kobe, Japan

On calculating disconnected-type hadronic light-by-light scattering diagrams from lattice QCD

Abstract

Keywords

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