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These proceedings show the preliminary results of the dijet longitudinaldouble spin asymmetry $A_{LL}$ in polarized proton-proton collisions at$\sqrt{s} = 200$ GeV for the pseudorapidity range $|\eta| \le 0.8$. Theintegrated luminosity of 10.6 pb$^{-1}$ used in this analysis was collectedduring RHIC Run-9. This result is presented as a function of the dijetinvariant mass in multiple pseudorapidity acceptances. The division intodifferent pseudorapidity regions allows the kinematics of the hard interactionto be constrained and information about the shape of $\Delta g(x)$ to beextracted for the first time. Comparisons are made with expectations fromvarious different theoretical scenarios of polarized parton distributions ofthe proton.

Gluon Polarization Measurements from Correlated Probes