Diboson production at the LHC with the CMS detector

The measurement of diboson production cross sections for a center-of-mass energy of 7 TeV is presented. Luminosities used are 1.1 fb$^{-1}$ from 2011 data for ZZ, WZ and WW processes and 36 pb$^{-1}$ from 2010 data for W$\gamma$ and Z$\gamma$final states. Cross sections are measured to $\sigma( \mbox{pp} \rightarrow \mbox{ZZ} + \mbox{X}) = 3.8^{+1.5}_{-1.2} \, (\mbox{stat.}) \pm 0.2 \, (\mbox{syst.}) \pm 0.2 \, (\mbox{lumi.}) \ \mbox{pb}$, $\sigma( \mbox{pp} \rightarrow \mbox{WZ} + \mbox{X}) = 17.0 \pm 2.4 \, (\mbox{stat.}) \pm 1.1 \, (\mbox{syst.}) \pm 1.0 \, (\mbox{lumi.}) \ \mbox{pb}$ and $\sigma( \mbox{pp} \rightarrow \mbox{WW} + \mbox{X}) = 55.3 \pm 3.3 \, (\mbox{stat.}) \pm 6.9 \, (\mbox{syst.}) \pm 3.3 \, (\mbox{lumi.}) \ \mbox{pb}$. The production cross sections of processes including photons in the final state, W$\gamma$ and Z$\gamma$ processes are given. Results obtained with 2010 data are also interpreted in term of anomalous triple gauge couplings.