Scaling violations and the gluon distribution of the nucleon |
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Authors: | M Glück E Hoffmann E Reya |
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Institution: | 1. Institut für Physik, Universit?t Dortmund, D-4600, Dortmund 50, Federal Republic of Germany
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Abstract: | Using recent data on deep inelastic lepton-nucleon scattering an attempt is made to extract the gluon distributionG(x, Q 2=4 GeV2) from the observed scaling violations of structure functions. The accuracy of the data allows only for a rough determination of the gluon distribution. In particular it is found that a hard gluon distributionis consistent with present measurements. Implications of the hard gluon distribution for charm production in the gluon fusion model and for the perturbative contributions to σ L /σ T are further discussed. Finally, analytic parametrizations of the QCDx- andQ 2-dependence of quark and gluon distributions are presented facilitating further possible applications. |
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