Cross section measurement for simultaneous production of a central and a forward jet in proton-proton collisions at sqrt(s)=7 TeV

The measurement of the cross section for the production of pairs of jets, with one of them in the central region and the other one in the forward region of the CMS detector at LHC, in proton-proton collision at $\sqrt{s}$=~7~TeV, is presented using a luminosity of 3.14~pb$^{-1}$. The jets are selected if they have transverse momentum $p_T >$~35~GeV and axis within pseudorapidity $|\eta|<$~4.7. The differential cross sections $d^2 \sigma / dp_T d\eta$ for the central and forward jets are compared to various Monte Carlo predictions.