PHENIX Results on Production in p+Al, p+Au and 3He+Au Collisions

Abstract

Results are presented of measurements of the modification in p+Au, d+Au and 3He+Au collisions at forward and backward rapidity by the PHENIX experiment. The rapidity, transverse momentum and collision centrality dependence of the modifications are presented, and compared between the three light projectile collision systems. The modification for p+Al is found to be small. For p+Au it is depends strongly on collision centrality at forward rapidity. In both cases models describe the data well. The modifications for d+Au and 3He+Au are very similar to those for p+Au, although there is a hint of slightly increased suppression for 3He+Au over p+Au at backward rapidity.