  The PHENIX experiment at the Relativistic Heavy Ion Collider (RHIC) at
Brookhaven National Laboratory (BNL) has measured the single-spin transverse
asymmetry ($A_{N}$) for neutral pion and non-identified charged hadron
production at $x_{F}\sim 0$ over a transverse momentum range of $\sim$ 0.5 to
5.0 GeV/c from polarized proton-proton interactions at a center of mass energy
($\sqrt{s}$) of 200 GeV. The asymmetries observed are consistent with zero.
