English

Dynamical quark loop light-by-light contribution to muon g-2 within the nonlocal chiral quark model

High Energy Physics - Phenomenology 2015-09-30 v2

Abstract

The hadronic corrections to the muon anomalous magnetic moment a_mu, due to the gauge-invariant set of diagrams with dynamical quark loop light-by-light scattering insertions, are calculated in the framework of the nonlocal chiral quark model. These results complete calculations of all hadronic light-by-light scattering contributions to a_mu in the leading order in the 1/Nc expansion. The result for the quark loop contribution is a_mu^{HLbL,Loop}=(11.0+-0.9)*10^(-10), and the total result is a_mu^{HLbL,NxQM}=(16.8+-1.2)*10^(-10).

Keywords

Cite

@article{arxiv.1502.04487,
  title  = {Dynamical quark loop light-by-light contribution to muon g-2 within the nonlocal chiral quark model},
  author = {A. E. Dorokhov and A. E. Radzhabov and A. S. Zhevlakov},
  journal= {arXiv preprint arXiv:1502.04487},
  year   = {2015}
}

Comments

11 pages, 5 figures, 1 table