On the k_(perp) dependent gluon density in hadrons and the photon
classification
✦ hep-ph
keywords
gluondensitydependentperpaccountinganalyticcalculatedcollinear
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The $k_{\perp}$ dependent gluon distribution for protons, pions,and photons is calculated accounting for the resummation of small~$x$ effects due to the Lipatov equation. It is represented by a convolution of a gluon density in the collinear limit and a universal function ${\cal G}(x,k^2,\mu)$ for which an analytic expression is derived.
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