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Rates are calculated for the processes gg→ss̄ and uū,dd̄→ss̄ in highly excited quarkgluon plasma. For temperature $T>~160$ MeV the strangeness abundance saturates during the lifetime ({~}10^-23 sec) of the plasma created in high-energy nuclear collisions. The chemical equilibration time for gluons and light quarks is found to be less than 10^-24 sec.
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Rafelski et al. (1982) studied this question.
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