Abstract

We analyse the high precision HERA F2 data in the low-x, x<0,01, and very-low-x, x<0.001, regions using λ-fits. λ is a measure of the rate of rise of F2 defined by F2∝(1/x)λ. We show that λ determined in these two regions, at various Q2 values, is systematically smaller in the very-low-x region as compared to the low-x region. We discuss some possible physical interpretations of this effect.

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