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arXiv · 1503.01274

Production of two Z-bosons in gluon fusion in the heavy top quark approximation

Kirill Melnikov·Matthew Dowling
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Abstract

We compute QCD radiative corrections to the continuum production of a pair of Z-bosons in the annihilation of two gluons. We only consider the contribution of the top quark loops and we treat them assuming that $m_t$ is much larger than any other kinematic invariant in the problem. We estimate the QCD corrections to $pp \to ZZ$ using the first non-trivial term in the expansion in the inverse top quark mass and we compare them to QCD corrections of the signal process, $pp \to H \to ZZ$.

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Kirill Melnikov, Matthew Dowling. 2015-03-04. Production of two Z-bosons in gluon fusion in the heavy top quark approximation. https://doi.org/10.1016/j.physletb.2015.03.030

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