1210.7203 (Daniel de Florian et al.)

Polarized semi-inclusive electroweak structure functions at
next-to-leading-order    [PDF]

Daniel de Florian, Yamila Rotstein Habarnau

We present a next-to-leading order (NLO) computation of the full set of polarized and unpolarized electroweak semi-inclusive DIS (SIDIS) structure functions, whose knowledge is crucial for a precise extraction of polarized parton distributions. We focus on the phenomenology of the polarized structure functions for the kinematical conditions that could be reached in an Electron-Ion-Collider. We show that the NLO corrections are sizeable, particularly in the small-$x$ range. We test the sensitivity of these structure functions on certain quark distributions and compare it to the situation of inclusive DIS and electromagnetic SIDIS.

View original: http://arxiv.org/abs/1210.7203