Next-to-Leading Order QCD Formulation of Deep Inelastic Scattering

Details Next-to-Leading Order QCD Formulation of Deep Inelastic Scattering Next-to-Leading Order QCD Formulation of Deep Inelastic Scattering

1993-02-24

arxiv.org/abs/hep-ph/9302305v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

(4 Pages in LaTex, 4 Figures, not included. Figures available via Fax or mail from Olness@sscvx1.ssc.gov)

Scientific paper

We have performed a QCD next-to-leading order (NLO) calculation for Deep Inelastic Scattering (DIS) retaining the full parton and hadron mass dependencies. We find that the gluon initiated contributions to DIS processes, such as charm production, are {\it comparable} in magnitude ({\it i.e.}, $30\%$ to $100\%$) to the ``leading-order'' (LO) sea-quark processes. The ``slow-rescaling" prescription and the full NLO formalism are compared in a quantitative manner. The use of DIS distributions and the inclusion of the charm mass via slow-rescaling are not sufficient to mimic the correct NLO physics. These results imply that previous analyses of charm production data to extract the strange and charm content of the nucleon, as well as the precise determination of Standard Model parameters based on these analyses (such as the Weinberg angle), need to be reassessed.

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