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High twist contribution to the longitudinal structure function $F_L$ at high $x$

Alekhin Sergey
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Abstract

We performed NLO QCD fit of combined SLAC/BCDMS/NMC DIS data at high $x$. Model independent x-shape of high twist contribution to structure function $F_L$ is extracted. Twist-4 contribution is found to be in fair agreement with the predictions of infrared renormalon model. Twist-6 contribution exhibits weak tendency to negative values, although in the whole is compatible with zero within errors.

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Alekhin Sergey. 1999-02-04. High twist contribution to the longitudinal structure function $F_L$ at high $x$. https://doi.org/10.1007/s100520000179

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