Directional dependence of the pion source in high-energy heavy-ion collisions

H. Bøggild, J. Boissevain, M. Cherney, J. Dodd, S. Esumi, C. W. Fabjan, D. E. Fields, A. Franz, K. H. Hansen, B. Holzer, T. J. Humanic, B. V. Jacak, R. Jayanti, H. Kalechofsky, T. Kobayashi, R. Kvatadze, Y. Y. Lee, M. Leltchouk, B. Lörstad, N. MaedaA. Medvedev, Y. Miake, A. Miyabayashi, M. Murray, S. Nishimura, E. Noteboom, S. U. Pandey, F. Piuz, V. Polychronakos, M. Potekhin, G. Poulard, A. Sakaguchi, M. Sarabura, M. Spegel, K. Shigaki, J. Simon-Gillo, W. Sondheim, T. Sugitate, J. P. Sullivan, Y. Sumi, H. van Hecke, W. J. Willis, K. Wolf

Research output: Contribution to journalArticlepeer-review

34 Scopus citations


π+π+ and π-π- correlations from 200 GeV per nucleon S + Pb collisions and π+π+ correlations from 450 GeV p + Pb collisions measured by the focussing spectrometer of CERN experiment NA44 are presented. The large data set which emphasizes small values of momentum difference allows multi-dimensional analysis along with the more traditional one-dimensional parameterization to characterize the pion emission source. It is found that the three radius parameters are similar and large compared to the projectile radius. This can be explained by pion scattering in the final state hadronic system.

Original languageEnglish (US)
Pages (from-to)386-392
Number of pages7
JournalPhysics Letters B
Issue number3
StatePublished - Apr 20 1995
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics


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