Spin dependence of three-jet and two-jet plus photon production in polarized proton-proton collisions

Abstract
Using helicity-amplitude techniques, we derive the partonic level spin-spin asymmetries a^LL for all of the processes relevant to the hadronic production of three-jet and two-jet plus photon final states. We discuss the structure of the observable asymmetries in these processes in polarized proton-proton collisions and their dependence on the spin-dependent parton distributions.