Strong coupling constant at NNLO from DIS data

Abstract

We discuss the results of our recent analysis [1] of deep inelastic scattering data on F2 structure function in the non-singlet approximation with next-to-next-to-leading-order accuracy. The study of high statistics deep inelastic scattering data provided by BCDMS, SLAC, NMC and BFP collaborations was performed with a special emphasis placed on the higher twist contributions. For the coupling constant the following value alfa_s(MZ2) = 0.1167 +- 0.0022 (total exp. error) was found.

Comments: 6 pages, 2 figures, PoS(QFTHEP2010)050, presented on the XIXth International Workshop on High Energy Physics and Quantum Field Theory, 8-15 September 2010, Golitsyno, Moscow, Russia