Progress in the dynamical parton distributions

Abstract

The present status of the (JR) dynamical parton distribution functions is reported. Different theoretical improvements, including the determination of the strange sea input distribution, the treatment of correlated errors and the inclusion of alternative data sets, are discussed. Highlights in the ongoing developments as well as (very) preliminary results in the determination of the strong coupling constant are presented.

Comments: 4 pages, 1 figure, Talk given at the XX International Workshop on Deep-Inelastic Scattering and Related Subjects (DIS2012)