K+/ pi + enhancement in heavy-ion collisions.
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Using the expanding fireball model, we calculate the K+/+ ratio from heavy-ion collisions at 14.5 GeV/nucleon. A substantially larger ratio than that from the proton-nucleus collisions at the same energy is obtained if the contribution from the pion-pion interactions is included. This is supported by the preliminary data. 1988 The American Physical Society.
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