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

2015/11/18 by A. S. Zhevlakov, Zhevlakov, A. S., A. E. Dorokhov +3
Physics and Astronomy · #Black Holes and Theoretical Physics #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.48550/arxiv.1511.05708

Proceedings of the PhiPsi15, Sep. 23-26, 2015, Hefei, China

arxiv created 2015/11/18 · openalex publication_date 2015/11/18 · arxiv updated 2015/11/19 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

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^HLbL,Loop=( 11.0±0.9) ⋅10^-10, and the total result is a_μ^HLbL,NχQM=(16.8±1.2) ⋅ 10^-10.

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