Single spin asymmetries in p(up arrow)p and (p)over-bar(up arrow)p inclusive processes

摘要

We consider several single spin asymmetries in inclusive p(up-arrow)p and (p)over-bar(up-arrow)p processes as higher twist QCD contributions, taking into account spin and intrinsic k(perpendicular-to) effects in the quark distribution functions. This approach has been previously applied to the description of the single spin asymmetries observed in p(up-arrow)p --> pi X reactions and all its parameters fixed: we give here predictions for new processes, which agree with experiments for which data are available, and suggest further possible measurements. (C) 1998 Elsevier Science B.V. All rights reserved. [References: 23]