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arXiv · 2610.40572

Spacelike and timelike kernels for the hadronic vacuum polarization contribution to the muon lifetime

A. V. Nesterenko
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Abstract

The explicit expressions for the spacelike kernels $K_Π^{(2)}(Q^2)$ and $K_{D}^{(2)}(Q^2)$ for the hadronic vacuum polarization contribution to the muon lifetime $ΔΓ_{\text{had}}$ are derived. The obtained results enable one to evaluate $ΔΓ_{\text{had}}$ within such methods as lattice studies, MUonE project, and others.

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A. V. Nesterenko. 2026-10-29. Spacelike and timelike kernels for the hadronic vacuum polarization contribution to the muon lifetime. https://arxiv.org/abs/2610.40572

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