Possible evidence of disoriented chiral condensates from the anomaly in Ω and Ω̄ abundances at the super proton synchrotron

J. I. Kapusta, S. M.H. Wong

Research output: Contribution to journalConference articlepeer-review

Abstract

No conventional picture of nucleus-nucleus collisions has yet been able to explain the abundance of Ω and Ω̄ in central collisions between Pb nuclei at 158 A GeV at the CERN SPS. We argue that such a deviation from predictions of statistical thermal models and numerical simulations is the evidence that they are produced as topological defects in the form of skyrmions arising from the formation of disoriented chiral condensates. The estimated domain size falls in the right range to be consistent with the so far non-observation of disoriented chiral condensate (DCC) from the distribution of neural pions.

Original languageEnglish (US)
Pages (from-to)1099-1102
Number of pages4
JournalPramana - Journal of Physics
Volume60
Issue number5
DOIs
StatePublished - May 2003
EventProceedings of the International Conference on Physics and Astrophysics of Quark-Gluon Plasma - Part II - Jaipur, India
Duration: Nov 26 2001Nov 30 2001

Bibliographical note

Copyright:
Copyright 2018 Elsevier B.V., All rights reserved.

Keywords

  • Disoriented chiral condensates
  • Heavy-ion collisions
  • Hyperon production
  • Skyrmions

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