Production Cross Sections of $J/\Psi$(1S) and $Y$(1S) at $\sqrt{s}$ = 7 TeV with CMS

Measurements of the production cross sections of $J/\Psi$(1S) and $Υ$(1S) resonances in the dimuon channel in proton-proton collisions with a $\sqrt{s}$ = 7 TeV at the CMS experiment at LHC (CERN) are presented. The efficiencies are obtained via data-driven methods. The differential cross sections are presented as a function of the transverse momentum. The total inclusive $J/\Psi$(1S) production cross section for an integrated luminosity of 36 pb$^{−1}$ is measured with (50.61 $\pm$ 0.04$_{stat}$ $\pm$ 3.09$_{sys}$ $\pm$ 2.02$_{lumi}$ ) $nb$ for a transverse momentum between 8 and 30 GeV/c and a rapidity range of |y| < 2.4. The total production cross section for the $Υ$(1S) resonance is measured for an integrated luminosity of 36 pb$^{−1}$ in the rapidity range of |y| < 2.0 and a transverse momentum range between 3 and 30 GeV/c with (4.96 $\pm$ 0.06$_{stat}$ $\pm$ 0.47$_{sys}$ $\pm$ 0.20$_{lumi}$ ) $nb$.