![]() Finally, the most recent results on subthreshold antiproton production is presented. Progress on the TPC detectors developed by the BNL group for heavy ion research is reported, along with recent analysis of polarization with incident silicon beams. In this connection, a proposal for studying high density nuclear matter with incident antiprotons is presented. These results use the phenomenological approach that could be useful in understanding hyperon production in heavy ion collisions. Publication of results on hyperon polarization with incident polarized proton beams is also presented. We present progress on the development of Ring Imaging Cerenkov counters for dilepton observations in general, and a short report on a high resolution method counter proposal that could be adapted to RHIC counters in general. The evidence for this seems to be the shape of the dilepton mass spectrum, the cross-section as a function of energy which seems to scale with pion production, and the general kinematic behavior of the lepton pairs themselves. ![]() ![]() It appears that the origin of lepton pairs is the annihilation of pions. The first phase of experiments on lepton pairs is almost complete and the results from the initial part of this program are presented in copies of three publications. This report presents the progress in our program of Relativistic Heavy Ion studies.
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