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arXiv · 2009.03742

Contribution of third generation quarks to two-loop helicity amplitudes for W boson pair production in gluon fusion

Christian Brønnum-Hansen·Chen-Yu Wang
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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 $gg \to WW$. 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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Christian Brønnum-Hansen, Chen-Yu Wang. 2020-09-08. Contribution of third generation quarks to two-loop helicity amplitudes for W boson pair production in gluon fusion. https://doi.org/10.1007/jhep01(2021)170

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