Prompt [Formula omitted] meson production at the LHC in the NRQCD with [Formula omitted]-factorization

In the framework of the [Formula omitted]-factorization approach, the prompt production of [Formula omitted] mesons at the LHC conditions is studied. Our consideration is based on the off-shell amplitudes for hard partonic subprocesses and on the nonrelativistic QCD (NRQCD) formalism for the formation of bound states. We try two latest parametrizations for noncollinear, or transverse momentum dependent (TMD) gluon densities derived from the Catani-Ciafaloni-Fiorani-Marchesini (CCFM) equation. We use the values of the nonperturbative matrix elements obtained from a combined fit of the [Formula omitted] and [Formula omitted] differential cross sections. Finally, we show an universal set of parameters that provides a reasonable simultaneous description for all of the available data on the prompt [Formula omitted] and [Formula omitted] production at the LHC.