An Estimate of Twist-Four Contributions at Small x B and Low Q 2 Jochen Bartels and Claas Bontus

We present a first study of gluonic twist-four corrections to the deep inelastic structure function F2 at small x and small Q 2. The calculations are based upon the double logarithmic approximation of the coupled twist-four evolution equations of the gluonic twist-four operators that are expected to be dominant at small x. We first review the analytical… (More)