Determination of the Parton Distribution Functions and Strong Coupling by Using Measurement of Jet Cross Sections at $\sqrt{s}$ = 13 TeV with the CMS detector with a combined QCD Analysis

In this thesis, a measurement of inclusive jet production is presented as a function of the transverse momentum $p$$_{T}$ and the absolute rapidity |y| of jets. The data was recorded in the CMS experiment at LHC during 2016 and corresponds to 35 fb$^{-1}$ at the center-of-mass energy of 13 TeV. The measured cross sections agree with recent perturbative QCD predictions in next-to-leading-order (NLO) complemented with next-to-leading logarithm resummation accuracy, while the fixed-order predictions at next-to-next-to-leading order (NNLO) accuracy overshoot the data at low $p$$_{T}$, for jet cone size of R=0.4. The data are used in a QCD analysis in order to determine the parton distribution functions (PDFs) and strong coupling constant, $\alpha$$_{s}$ ($M$$_{Z}$), simultaneously. Constraints on gluon distribution and the strong coupling have been quantified. In addition, the impact of existing measurements of jet and W boson production and at the center-of-mass energy of 8 TeV, as well as the top quark pair production at the center-of-mass energy of 5.02 TeV at the LHC on PDFs are quantified via including them in a QCD analysis.