On the flat transverse momentum dependence of the single-spin asymmetry in inclusive neutral pion production
arXiv:1211.4341 · doi:10.1103/PhysRevD.88.017502
Abstract
We discuss recent experimental results from RHIC where the flat transverse momentum dependence of a single-spin asymmetry has been found in inclusive production of neutral pions. This dependence takes place in a wide region of the transverse momenta up to GeV/c. We emphasize that similar dependence has been predicted in the nonperturbative spin filtering mechanism for the single-spin asymmetries in hadron interactions and present some implications for this mechanism from the new experimental data.
11 pages, 5 figures, revised and extended version: one figure and several equations have been added, textual modifications. arXiv admin note: text overlap with arXiv:0811.3862