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IHEP 98 - 3
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| S.I. Alekhin | ||
| High twist contribution to the longitudinal structure function FL at high x | ||
| Protvino, 1999.-p.13, figs.5, tables 5, refs.:21. | ||
We perform the NLO QCD fit to the combined SLAC-BCDMS-NMC DIS data at high $x$. The model independent x-shape of high twist contribution to structure function $F_L$ is extracted. The twist-4 contribution is found to be in a qualitative agreement with the predictions of infrared renormalon model. The twist-6 contribution exhibits a weak trend to negative values, although as a whole it is compatible with zero within the errors.
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