No conventional picture of nucleus-nucleus collisions has yet been able to explain the abundance of Ω and Ω̄ hadrons in central collisions between Pb nuclei at 158 A GeV at the CERN SPS. We argue that this is evidence that they are produced from topological defects in the form of skyrmions arising from the formation of disoriented chiral condensates. It is shown that the excess Ω or Ω̄ produced could not be easily washed out in the hadronic medium and therefore would survive in the final state.
|Original language||English (US)|
|Number of pages||8|
|Journal||Journal of Physics G: Nuclear and Particle Physics|
|State||Published - Jul 2002|