1203.5293 (Andreas Schäfer et al.)

A note on the scale evolution of the ETQS function T_F(x,x)    [PDF]

Andreas Schäfer, Jian Zhou

We reexamine the scale dependence of the ETQS (Efremov-Teryaev-Qiu-Sterman) twist-3 matrix element which has been studied already by the four different groups with conflicting results Ref.[1-4]. We find that we can in fact reproduce the results of Ref.[4] with the method Ref.[4] when we treat some subtleties with greater care, thus easing the mentioned conflict.

View original: http://arxiv.org/abs/1203.5293