Leading+higher twist dsig/dxF distribution for R⁺

R⁺ (uud-gluino) x_F distribution from 800 GeV protons on various targets.
Four gluino masses are choosen, m_g=1.2 (top), 1.5 (middle), 3.5, and 5.0 (Botton).
For each mass, there is a triplet of curves representing different targets: proton (top), Be (middle), and Cu (bottom).