SEMINAR   Monday, June 21st - h. 15:30 Aula edif. 22 Fisica del Nucleo       Christine Aidala Columbia University     Recent Spin Results from PHENIX  (file.ppt - file.pdf)   Abstract The Relativistic Heavy Ion Collider (RHIC) at Brookhaven National Laboratory produced the first high-energy longitudinally polarized proton collisions in 2003. The PHENIX experiment has performed an initial measurement of the double longitudinal spin asymmetry ALL for midrapidity neutral pion production, a quantity sensitive to the gluon polarization Delta-g. Analysis details and results will be discussed.