Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2002-01-14
Phys.Lett.B531:216-224,2002
Physics
High Energy Physics
High Energy Physics - Phenomenology
18 pages, 6 figures. FORTRAN code for parton sets can be found at http://durpdg.dur.ac.uk/hepdata/mrs
Scientific paper
10.1016/S0370-2693(02)01483-1
We perform a NNLO (and a LO) global parton analysis in which we include the new precise data for deep inelastic scattering from HERA and for inclusive jet production at the Tevatron, together with the improved knowledge of the three-loop splitting functions. The results are compared with our recent NLO analyses. The LO fit produces significantly worse results in general, but gives a surprisingly good fit to the Tevatron high-E_T jet data. For the approximate NNLO analysis we notice a slight improvement in the quality of the global fit, and find that the partons are changed by up to 10% at Q^2=10 GeV^2$, in particular in the x<0.01 regime.
Martin A. D.
Roberts Richard G.
Stirling James W.
Thorne Robert S.
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