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arXiv · 1511.05708

Hadronic contribution from light by light processes in (g-2) of muon in nonlocal quark model

A. S. Zhevlakov·A. E. Dorokhov·A. E. Radzhabov
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Abstract

The hadronic corrections to the muon anomalous magnetic moment, due to the full gauge-invariant set of diagrams with dynamical quark loop and intermediate pseudoscalar and scalar states light-by-light scattering insertions, are calculated in the framework of the nonlocal chiral quark model. These diagrams correspond to all hadronic light-by-light scattering contributions to $a_μ$ in the leading order of the $1/N_{c}$ expansion in quark model. The result for the quark loop contribution is $a_μ^{\mathrm{HLbL,Loop}}=\left( 11.0\pm0.9\right) \cdot10^{-10}$, and the total result is $a_μ^{\mathrm{HLbL,NχQM}}=\left(16.8\pm1.2\right) \cdot 10^{-10}$.

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A. S. Zhevlakov, A. E. Dorokhov, A. E. Radzhabov. 2015-11-18. Hadronic contribution from light by light processes in (g-2) of muon in nonlocal quark model. https://arxiv.org/abs/1511.05708

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