Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2003-10-17
Phys.Lett. B586 (2004) 345-352
Physics
High Energy Physics
High Energy Physics - Phenomenology
10 pages and 5 psfigures
Scientific paper
10.1016/j.physletb.2004.02.028
Using the new schemes provided by the CTEQ and MRST collaborations and by Alekhin, we analyse the uncertainties due to the parton distribution functions (PDFs) on the next-to-leading-order cross sections of the four main production processes of the Standard Model Higgs boson at the LHC and the Tevatron. In the Higgs mass range where the production rates are large enough, the spread in the uncertainties when the three sets of PDFs are compared is of about 15% in all processes and at both colliders. However, within one given set of PDFs, the deviations from the values obtained with the reference sets are much smaller, being of ${\cal O}(5$%), except in the gluon--gluon fusion mechanism at relatively large Higgs boson masses, where they can reach the level of 10% (15%) at the LHC (Tevatron).
Djouadi Abdelhak
Ferrag Samir
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