Study of HERA data at Low Q^2 and Low x

A. M Cooper-Sarkar, I. Abt, B. Foster +3

In the HERAPDF2.0 PDF analysis it was noted that the fit ${\chi }^2$ worsens significantly at low $Q^2$ for both NLO and NNLO fits. The turn over of the reduced cross section at low-$x$…