Associated production of $J/\psi$-mesons and open charm and double open   charm production at the LHC
  Theoretical predictions of cross sections and properties of the $J/\psi$-meson production in association with an open charm hadron and formation of two open charm hadrons from two $c\bar{c}$ pairs in the LHC conditions are presented. Processes in both single and in double parton scattering mechanisms are included into consideration. Special attention is paid to the kinematic limits of the LHCb detector for which comparison with the newest experimental data is carried out. 
A. V. Berezhnoy, A. K. Likhoded, A. V. Luchinsky, A. A. Novoselov
hep-ph hep-ex