  We study, within QCD collinear factorization and including BFKL resummation
at the next-to-leading order, the production of Mueller-Navelet jets at LHC
with center-of-mass energy of 7 TeV. The adopted jet vertices are calculated in
the approximation of small aperture of the jet cone in the
pseudorapidity-azimuthal angle plane. We consider several representations of
the dijet cross section, differing only beyond the next-to-leading order, to
calculate a few observables related with this process. We use various methods
of optimization to fix the energy scales entering the perturbative calculation
and compare thereafter our results with the experimental data from the CMS
collaboration.
