Saturation model of DIS : an update

Abstract

We present the results of new fits to the recently extracted data on $F_2$ at low $x$ with the GBW saturation model and its modification to cover high values of $Q^2$. We find that the model stands the test of time and gives a good description of the data with slightly modified parameters. All the essential elements of the model, especially the saturation scale, are retained.

Comments: 16 pages, 8 figures; v2: several textual changes and additions, Table 2 added, version accepted by JHEP; v3: misprint corrected