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arXiv · 1506.00900

Low-energy moments of non-diagonal quark current correlators at four loops

A. Maier·P. Marquard
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Abstract

We compute the leading four physical terms in the low-energy expansions of heavy-light quark current correlators at four-loop order. As a by-product we reproduce the corresponding top-induced non-singlet correction to the electroweak rho parameter.

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A. Maier, P. Marquard. 2015-10-23. Low-energy moments of non-diagonal quark current correlators at four loops. https://doi.org/10.1016/j.nuclphysb.2015.07.031

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