Measurement of the single-top t-channel cross section in pp collisions at centre-of-mass energy of 8 TeV

The measurement of the single-top $t$-channel production cross section in pp collisions at 8 TeV with the CMS detector at the LHC considering the leptonic decay channel with a muon in the final state is presented. After a selection optimized for the $t$-channel production, the pseudorapidity distribution of the recoil jet is exploited for the measurement. The main backgrounds are estimated with data driven techniques. With an integrated luminosity of 5.0 fb$^{-1}$ the cross section is found to be $80.1 \pm 5.7\mathrm{(stat.)} \pm 11.0 \mathrm{(syst.)} \pm 4.0 \mathrm{(lumi.)}\,\mathrm{pb}$ in agreement with the standard model prediction.