Study of HERA ep Data at Low Q^2 and Low x_Bj and the Need for Higher-Twist Corrections to Standard pQCD Fits

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

A detailed comparison of HERA data at low Bjorken-$x$ and low four-momentum-transfer squared, $Q^2$, with predictions based on $\ln Q^2$ evolution (DGLAP) in perturbative Quantum…