B-meson measurement via secondary $J/\psi$ production in Pb-Pb collisions at $\sqrt{s}_{NN}$ = 5.5 TeV in the CMS

The production of heavy quarks in heavy-ion collisions is important because it is expected to give information about high-density QCD matter. One interesting channel of heavy quark measurements at LHC is the decay of B to J/$\psi$. The J/$\psi$ mesons from this channel can be separated from the primary J/$\psi$(produced at collision vertex) by using the secondary vertex which is efficiently reconstructed with the CMS tracker. In this work, the generator level results for the primary and secondary J/$\psi$ obtained through dimuon pairs are presented for pp and PbPb collisions at $\sqrt s_{NN}$ = 5.5 TeV.