Parton distributions : a new global analysis
نویسندگان
چکیده
We present a new analysis of parton distributions of the proton. This incorporates a wide range of new data and an improved treatment of heavy flavours and prompt photon production. The new set (MRST) shows systematic differences from previous sets of partons which can be identified with particular features of the new data and with improvements in the analysis. We also investigate the sensitivities of the results to (i) the uncertainty in the determination of the gluon at large x, (ii) the value of αS(M 2 Z) and (iii) the minimum Q2 cut on the data that are included in the global fit.
منابع مشابه
Global Qcd Analysis of Parton Structure of the Nucleon: Cteq5 Parton Distributions † ; and (ii) a Procedure to Infer F 4 Cteq5 Parton Distributions
An up-to-date global QCD analysis of high energy lepton-hadron and hadronhadron interactions is performed to better determine the gluon and quark parton distributions in the nucleon. Improved experimental data on inclusive jet production, in conjunction with precise deep inelastic scattering data, place good constraints on the gluon over a wide range of x; while new data on asymmetries in Drell...
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