Journal
EUROPEAN PHYSICAL JOURNAL C
Volume 73, Issue 6, Pages -Publisher
SPRINGER
DOI: 10.1140/epjc/s10052-013-2467-x
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Funding
- BMBF [05H09PXE, 05H12PXE]
- Helmholtz Alliance Physics at the Terascale
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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 4.5 % 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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