The Rise of the Proton Structure Function F_2 Towards Low x
arXiv:hep-ex/0206062
Abstract
Results on the derivative of log(F_2) with respect to log(x) at fixed Q^2 are presented. The measured derivatives are within errors independent of x for Q^2 >= 0.85 GeV^2 and increase linearly with log(Q^2) for 0.0001 <= x <= 0.01 and Q^2 >= 3 GeV^2. The results are based on preliminary and published H1 data which at Q^2 below 2 GeV^2 are combined with NMC and ZEUS data.
arXiv commentpresented at DIS2002, Krakow, 30.4. - 4.5. 2002