On consistent determination of ${\alpha }_s$ from jet rates in deep inelastic scattering

Abstract

For theoretically consistent determination of ${\alpha }_s$ from jet rates in deep inelastic scattering the dependence on ${\alpha }_s$ of parton distribution functions is in principle as important as that of hard scattering cross--sections. For the kinematical region accessible at HERA we investigate in detail numerical importance of these two sources of the ${\alpha }_s$ dependence of jet rates.

10 pages, Latex, epsfig, 6 figures in PS format attached