Asymptotic gluon density within the color dipole picture in light of HERA high-precision data

We present an analysis of the most precise set of Hadron-Electron Ring Accelerator (HERA) data within the color dipole formalism, by using an analytical gluon density, based on the double-logarithm approximation of the Dokshitzer-Gribov-Lipatov-Altarelli-Parisi (DGLAP) equations in the asymptotic limit of the scaling variable, sigma = log (1/x) log (log (Q(2)/Q(0)(2))) -> infinity. Fits to the data, including charm and bottom quarks, are performed and demonstrate the efficiency of the model in describing the reduced cross section, ar, in the wide range Q(2): (1.5, 500) GeV2 for two dipole models including parton saturation effects. We also give predictions to F-2(c (c) over bar), F-2(b (b) over bar) and F-L, all describing the data reasonably well in the range Q(2): (2.5, 120) GeV2. Total cross sections of exclusive photoproduction of J/yr and p are also calculated and successfully compared to HERA data and recent measurements at LHCb.