MRST 2001 : partons and α S from precise deep inelastic scattering and Tevatron jet data
نویسندگان
چکیده
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 α S better than ever before. We find a somewhat smaller gluon at low x than previous determinations and that α S (M 2 Z) = 0.119 ± 0.002 (expt.) ± 0.003 (theory).
منابع مشابه
NNLO global parton analysis
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 surprisingl...
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