Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2011-02-15
Phys.Lett.B704:36-42,2011
Physics
High Energy Physics
High Energy Physics - Phenomenology
12 pages, 8 figures. Discussion extended to NNLO, and paper accordingly rewritten altogether. Several further small improvemen
Scientific paper
10.1016/j.physletb.2011.08.055
We discuss the impact of the treatment of NMC structure function data on parton distributions in the context of the NNPDF2.1 global PDF determination at NLO and NNLO. We show that the way these data are treated, and even their complete removal, has no effect on parton distributions at NLO, and at NNLO has an effect which is below one sigma. In particular, the Higgs production cross-section in the gluon fusion channel is very stable.
Ball Richard D.
Bertone Valerio
Cerutti Francesco
Debbio Luigi Del
Forte Stefano
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