Phenomenology of IR-renormalons in inclusive processes

We have compared the existing experimental data on the leading power corrections to the structure functions F2(x, Q2), F3(x, Q2), and FL(x, Q2) with the IR-renormalon model predictions for higher-twist contributions. Our analysis shows that the model properly describes the x-dependence, but typically falls short by a factor 2 or 3 as far as the magnitude of higher-twist corrections is concerned.