Abstract
Antiproton production in 11.7AGeV/c Au+Au collisions over a wide transverse-mass coverage was studied using the AGS-E866 experimental apparatus. The mean transverse kinetic energy increases as a function of centrality and is similar to that of protons. The antiproton yields in Si+Al, Si+Au, and Au+Au collisions are consistent with scaling with the 0.7 power of the number of participant nucleons.Received 7 May 1998DOI:https://doi.org/10.1103/PhysRevLett.81.2650©1998 American Physical Society
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