Universal pion freeze-out phase-space density

Abstract Results on the pion phase-space density at freeze-out in sulphur-nucleus, Pb-Pb and π-p collisions at the CERN SPS are presented. All heavy-ion reactions are consistent with the thermal Bose-Einstein distribution ƒ = [exp( E/T ) − 1] −1 at T ∼ 120 MeV, modified for radial expansion. π-p data are also consistent with ƒ, but at T ∼ 180 MeV and without radial flow.

• Publication year

  1999

• Venue

  Nuclear Physics

• Publication date

  1999-01-06

• Fields of study

  Physics

• Identifiers
  DOI 10.1016/S0370-2693(99)00481-5arXiv hep-ph/9902342
• 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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