Small-x physics and heavy quark photoproduction in the semihard approach at HERA

Details Small-x physics and heavy quark photoproduction in the semihard approach at HERA Small-x physics and heavy quark photoproduction in the semihard approach at HERA

1995-01-31

arxiv.org/abs/hep-ph/9501410v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

LaTeX, 10 pages, 5 figures (available on request via mail)

Scientific paper

Processes of hevy quark photoproduction at HERA energies and beyond are investigated using the semihard ($k_{\bot}$ factorization) approach. The virtuality and longitudinal polarization of gluons in the photon - gluon subprocess as well as the saturation effects in the gluon distribution function at small $x$ have been taken into account. The total cross sections, rapidity and $p_{\bot}$ distributions of the charm and beauty quark photoproduction have been calculated. We obtained the some differences between the predictions of the standard parton model and the semihard approach used here.

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