Unintegrated gluon distributions from the color dipole cross section in the BGK saturation model

Abstract

We evaluate the unintegrated gluon distribution of the proton starting from a parametrization of the color dipole cross section including DGLAP evolution and saturation effects. To this end, we perform the Fourier-Bessel transform of $\sigma (x,r)/\alpha (r)$. At large transverse momentum of gluons we match the so-obtained distribution to the logarithmic derivative of the collinear gluon distribution. We check our approach by calculating the proton structure function $F_L(x,Q^2)$ finding good agreement with HERA data.

4 pages, 3 figs

References in corpus (6)

• Deep inelastic cross-section measurements at large y with the ZEUS detector at HERA
• Hard scale dependent gluon density, saturation and forward-forward dijet production at the LHC
• Coherent photoproduction of $J/\psi$ in nucleus-nucleus collisions in the color dipole approach
• Investigating the inclusive transverse spectra in high-energy $pp$ collisions in the context of geometric scaling framework
• Dipole model analysis of highest precision HERA data, including very low $Q^2$'s
• Longitudinal structure function $F_L$ at low $Q^2$ and low $x$ with model for higher twist: an update

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