Double differential charm and beauty production cross section measurements at 5 TeV in CMS at the LHC

Double differential cross sections for the production of prompt $D$$^{*}$ mesons, and $D$$^{*}$ mesons from b hadron decays (non-prompt) are measured through the decays $D$$^{*}$ → $D$$^{0}$$\pi$$_{s}$ → $K$$\pi$$\pi$$_{s}$ and $B$ → $D$$^{*}$ $X$ → $D$$^{0}$$\pi$$_{s}$ → $K$$\pi$$\pi$$_{s}$ $X$ in pp collisions in CMS at a center of mass energy of 5 TeV in the full phase space complementary to LHCb. The separation of prompt from non-prompt $D$$^{*}$ mesons near the production threshold is performed in the kinematic range $_{pT}$ > 1.5 GeV and |$y$| < 2. This procedure and the resulting cross sections in the accessible phase space including a comparison with QCD theory predictions and comparisons with other experiments are presented within this thesis.
The procedure including the results of this thesis opens the opportunity for the determination of cross sections for inclusive charm and beauty production at the LHC with different center-of-mass energies down to very low transverse momentum, and the comparison with QCD predictions in next-to-leading order of perturbation theory.