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arXiv · 1210.8263

Top- and bottom-mass effects in hadronic Higgs production at small transverse momenta through LO+NLL

Hendrik Mantler·Marius Wiesemann
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Abstract

The resummed transverse momentum distribution of the Higgs boson in gluon fusion through LO+NLL for small transverse momenta is considered, where the Higgs is produced through a top- and bottom-quark loop. We study the mass effects with respect to the infinite top-mass approach. The top-mass effects are small and the heavy-top limit is valid to better than 4% as long as the Higgs' transverse momentum stays below 150 GeV. When the bottom loop is considered as well, the discrepancy reaches up to about 10%. We conclude that bottom-mass effects cannot be included in a reasonable manner by a naive reweighting procedure in the heavy-top limit. We compare our results to an earlier, alternative approach based on POWHEG.

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Hendrik Mantler, Marius Wiesemann. 2013-06-28. Top- and bottom-mass effects in hadronic Higgs production at small transverse momenta through LO+NLL. https://doi.org/10.1140/epjc%2Fs10052-013-2467-x

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