Neutral Pion Longitudinal Double Spin Asymmetry Measurement at Forward Rapidity with the PHENIX Muon Piston Calorimeter

The PHENIX experiment at RHIC commissioned a new forward calorimeter during the 2006 polarized proton run, the Muon Piston Calorimeter (MPC). The MPC is a PbWO$_{4}$ based electromagnetic calorimeter covering $3.1<|\eta|< 3.7$ in pseudo rapidity and 2$\pi$ in azimuthal angle. One of the main goals of the PHENIX experiment is to contribute to solving the ``proton spin crisis" by determining the gluon spin contribution to the proton's total spin. This can be done through measurements of the longitudinal double spin asymmetry ($A_{LL}$). Neutral pions produced at the rapidity of the MPC extend the momentum fraction $x$ of the proton sampled, allowing for a measurement of the $\pi^{0}$~$A_{LL}$ in a previously unexplored kinematic region at the PHENIX experiment --- a region where quark-gluon interactions dominate so that the sign of the gluon helicity can be directly measured in $A_{LL}$. In this talk I will present the status from the analysis of the neutral pion $A_{LL}$ using the 2006 $\sqrt{s} = 62$~GeV data.