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.
ASJC Scopus subject areas
- Physics and Astronomy(all)