The parton to hadron phase transition observed in Pb+Pb collisions at 158 GeV per nucleon

Abstract Hadronic yields and yield ratios observed in Pb+Pb collisions at the SPS energy of 158 GeV per nucleon are known to resemble a thermal equilibrium population at T =180±10 MeV, also observed in elementary e + + e − to hadron data at LEP. We argue that this is the universal consequence of the QCD parton to hadron phase transition populating the maximum entropy state. This state is shown to survive the hadronic rescattering and expansion phase, freezing in right after hadronization due to the very rapid longitudinal and transverse expansion that is inferred from Bose-Einstein pion correlation analysis of central Pb+Pb collisions.

• Publication year

  1999

• Venue

  Physics Letters B

• Publication date

  1999-05-05

• Fields of study

  Physics

• Identifiers
  DOI 10.1016/S0370-2693(99)00482-7arXiv hep-ph/9905247
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar

• No claims are published for this paper.

• No concepts are published for this paper.

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