Polarized protons at the AGS and high P2⊥ spin effects

Abstract

At the AGS an intense polarized proton beam was for the first time successfully accelerated to 22 GeV/c, preserving a polarization of ∼45%. Using this polarized beam a surprisingly strong energy dependence of the spin‐spin correlation parameter Ann in high p2⊥ elastic proton‐proton scattering was discovered.At the AGS an intense polarized proton beam was for the first time successfully accelerated to 22 GeV/c, preserving a polarization of ∼45%. Using this polarized beam a surprisingly strong energy dependence of the spin‐spin correlation parameter Ann in high p2⊥ elastic proton‐proton scattering was discovered.