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arXiv · 2504.13588

The light-by-light contribution to the muon g-2 within the nonlocal chiral quark model with vector and axial-vector mesons

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

The hadronic light-by-light contribution to the muon anomalous magnetic moment is calculated in the framework of a nonlocal quark model with scalar-pseudoscalar and vector-axial-vector channels. The effect of the dressing of internal photons by vector mesons is found to be tiny. As a result, the contribution from the non-strange quark loop is a_{\mu}^{HLbL,Loop}=( 96+-15.4)x10^{-11}. The total value, including meson exchanges and the contribution of strange particles, is a_{\mu}^{HLbL}=( 157+-10.6)x10^{-11}.

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A. E. Radzhabov, A. S. Zhevlakov. 2025-04-18. The light-by-light contribution to the muon g-2 within the nonlocal chiral quark model with vector and axial-vector mesons. https://arxiv.org/abs/2504.13588

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