Contribution of third generation quarks to two-loop helicity amplitudes for W boson pair production in gluon fusion
Abstract
We compute the contribution of third generation quarks (t,\ b) to the two-loop amplitude for on-shell W boson pair production in gluon fusion gg WW. We present plots for the amplitude across partonic phase space as well as reference values for two kinematic points. The master integrals are efficiently evaluated by numerically solving a system of ordinary differential equations.
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