d+Au at PHENIX: Insights on the Cronin effect, shadowing and saturation

Wit Busza pioneered the study of proton–nucleus collisions in order to understand how nucleons lose energy to the nuclear medium and how multiple interactions can affect particle production. These are questions of paramount importance for formation of quark gluon plasma in ion–ion collisions. In this proceedings I report insights on nuclear shadowing, saturation, and the Cronin effect drawn from d+Au collisions at RHIC.