An Excitation Function of K${}^{-}$ and K${}^{+}$ Production in Au+Au Reactions at the AGS

L. Ahle, E866, E917 Collaborations

Mid-rapidity spectra and yields of K${}^{-}$ and K${}^{+}$ have been measured for Au+Au collisions at 4, 6, 8, and 10.7 AGeV. The K${}^{-}$ yield increases faster with beam energy than for K$^…