## “Bulletin Board”

School of Particles and Accelerator - December 19, 2007

### Determination of the Strong Coupling Constant $\alpha_s(M_z)$ from DIS Experimental Data

#### Dr. Ali N. Khorramian from IPM, Semnan University

 Abstract: Various QCD analysis of the world unpolarized and polarized deep-inelastic data on charged lepton?nucleon and neutrino?nucleus scattering were performed in order to measure the QCD scale ΛQCD and αs(Mz), from the nucleon structure func-tions. In this talk I will give a brief overview on the status of these analysis. Also I will present our results for the values of ΛQCD and αs(Mz) inbased on the polynomials expansion method. Time: December 19, 2007