NLO photon parton parametrization

Abstract

An NLO photon parton parametrization is presented based on the existing $F_2^{\gamma }$ measurements from $e^{+}{e}^{-}$ data and the low-$x$ proton structure function from $ep$ interactions. Also included in the extraction of the NLO parton distribution functions are the dijets data coming from $\gamma p\to j_1+j_2+X$. The new parametrization is compared to other available NLO parametrizations.

Comments: Talk presented at DIS05, Madison, Wisconsin