Two-loop master integrals for the mixed QCD-electroweak corrections for H → $$ b\overline{b} $$ through a $$ Ht\overline{t} $$-coupling

Abstract

Abstract We present the two-loop master integrals relevant to the $$ \mathcal{O} $$ O (αα s )-corrections to the decay H → $$ b\overline{b} $$ b b ¯ through a $$ Ht\overline{t} $$ H t t ¯ -coupling. We keep the full dependence on the heavy particle masses, but neglect the b-quark mass. The occurring square roots can be rationalised and the result is expressed in terms of multiple polylogarithms.