Finite-top-mass effects in NNLO Higgs production

We construct an accurate approximation to the exact NNLO cross section for Higgs production in gluon-gluon fusion by matching the dominant finite top mass corrections recently computed by us to the known result in the infinite mass limit. The ensuing corrections to the partonic cross section are ver...

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Bibliographic Details
Published in:arXiv.org 2008-09
Main Authors: Marzani, Simone, Ball, Richard D, Vittorio Del Duca, te, Stefano, Vicini, Alessandro
Format: Article
Language:English
Subjects:
Cross-sections
Online Access:Get full text
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Summary:We construct an accurate approximation to the exact NNLO cross section for Higgs production in gluon-gluon fusion by matching the dominant finite top mass corrections recently computed by us to the known result in the infinite mass limit. The ensuing corrections to the partonic cross section are very large when the center of mass energy of the partonic collision is much larger than the Higgs mass, but lead to a moderate correction at the percent level to the total Higgs production cross section at the LHC. Our computation thus reduces the uncertainty related to these corrections at the LHC from the percent to the per mille level.
ISSN:2331-8422
DOI:10.48550/arxiv.0809.4934