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arXiv · 1206.0157

Top-mass effects in differential Higgs production through gluon fusion at order α_s^4

Robert V. Harlander·Tobias Neumann·Kemal J. Ozeren·Marius Wiesemann
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Abstract

Effects from a finite top quark mass on differential distributions in the Higgs+jet production cross section through gluon fusion are studied at next-to-leading order in the strong coupling, i.e. $O(α_s^4)$. Terms formally subleading in $1/m_t$ are calculated, and their influence on the transverse momentum and rapidity distribution of the Higgs boson are evaluated. We find that, for the differential K-factor, the heavy-top limit is valid at the 2-3% level as long as the transverse momentum of the Higgs remains below about 150 GeV.

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Robert V. Harlander, Tobias Neumann, Kemal J. Ozeren, Marius Wiesemann. 2012-06-01. Top-mass effects in differential Higgs production through gluon fusion at order α_s^4. https://doi.org/10.1007/jhep08(2012)139

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