[Relativistic heavy ion research]

This progress report describes the participation of members of the Nevis group in different experiments during the FY93 period. There was major involvement in: BNL/AGS experiment E802/859/866; BNL RHIC experiment PHENIX; and CERN/SPS experiment NA44. The group was also involved in the small scale experiment E858/878 at BNL/AGS. For the BNL/AGS experiment data collection is now complete, and the group is involved in data analysis. Contributions to systematic procedures for measuring and maintaining the high calibration of the time-of-flight system, along with the previously developed trigger system have been significant contributions to the physics which is beginning to emerge from this heavy ion experiment. The CERN experiment has published first results on S-Pb collisions, with emphasis on two particle correlations. The group has been actively involved in data collection this year. Emphasis is being placed on proton-proton interactions in S-Pb and proton-Pb collisions. The PHENIX experiment is aimed at measuring signatures of quark-gluon plasma. The Nevis group has been actively involved in this experiment from design of the time-of-flight and trigger system, to acting as experiment spokesman