2000 character limit reached
Low-energy moments of non-diagonal quark current correlators at four loops
Published 2 Jun 2015 in hep-ph and hep-lat | (1506.00900v2)
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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