Dijet measurement at CMS experiment

In this thesis, jets with large rapidity separation are measured by using the data collected with CMS detector from proton-proton collisions at the center-of-mass energy of 7 TeV with 36 pb−1 integrated luminosity. Jets are reconstructed with the anti-kT algorithm which has the jet cone size R = 0.5 in the ranges pT > 35 GeV/c and |y| < 4.7. The average cosines of rapidity separation between the dijets are also measured as a physical quantity. Furthermore, the average jet multiplicity which indicates more hadron activity at large rapidity intervals is also presented.