Top-mass effects in differential Higgs production through gluon fusion at O( {α_s^4} )
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.
- Publication:
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Journal of High Energy Physics
- Pub Date:
- August 2012
- DOI:
- 10.1007/JHEP08(2012)139
- arXiv:
- arXiv:1206.0157
- Bibcode:
- 2012JHEP...08..139H
- Keywords:
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- NLO Computations;
- Hadronic Colliders;
- High Energy Physics - Phenomenology
- E-Print:
- 21 pages, 12 figures