The ${\alpha }_S$ Dependence of Parton Distributions

Abstract

We perform next-to-leading order global analyses of deep inelastic and related data for different fixed values of ${\alpha }_S(M_Z^2)$. We present sets of parton distributions for six values of ${\alpha }_S$ in the range 0.105 to 0.130. We display the $(x,Q^2)$ domains with the largest parton uncertainty and we discuss how forthcoming data may be able to improve the determination of the parton densities.

Comments: 8 pages 6 figures