MRST2001: partons and alpha_S from precise deep inelastic scattering and Tevatron jet data

Details MRST2001: partons and alpha_S from precise deep inelastic scattering and Tevatron jet data MRST2001: partons and alpha_S from precise deep inelastic scattering and Tevatron jet data

2001-10-16

arxiv.org/abs/hep-ph/0110215v2

Eur.Phys.J.C23:73-87,2002

Physics

High Energy Physics

High Energy Physics - Phenomenology

Revised version to be published in Eur. Phys. J.. Various modifications, including new appendix detailing effect of correlated

Scientific paper

10.1007/s100520100842

We use all the available new precise data for deep inelastic and related hard scattering processes to perform NLO global parton analyses. These new data allow an improved determination of partons and, in particular, the inclusion of the recent measurements of the structure functions at HERA and of the inclusive jets at the Tevatron help to determine the gluon distribution and alpha_S better than ever before. We find a somewhat smaller gluon at low x than previous determinations and that alpha_S(M_Z^2) = 0.119 +/- 0.002 (expt.) +/- 0.003 (theory).

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