Two- and three-dimensional analysis of Bose-Einstein correlations in π+/K+p interactions at 250 GeV/c

N. M. Agababyan*, M. R. Atayan, M. Charlet, J. Czyzewski, E. A. De Wolf, K. Dziunikowska, A. M F Endler, Z. Sh Garutchava, H. R. Gulkanyan, R. Sh Hakobyan, J. K. Karamyan, D. Kisielewska, W. Kittel, S. S. Mehrabyan, Z. V. Metreveli, E. C. Oliveira, K. Olkiewicz, F. K. Rizatdinova, E. K. Shabalina, L. N. SmirnovaM. D. Tabidze, L. A. Tikhonova, A. V. Tkabladze, A. G. Tomaradze, F. Verbeure, S. A. Zotkin

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

20 Scopus citations

Abstract

The NA22 data on π-π- correlations are analyzed in terms of a number of two- and three-dimensional parametrizations (Gaussian space-time, Goldhaber, Bowler string-like, Bertsch hydrodynamical, Kopylov-Podgoretskiǐ, etc.). Contrary to the results obtained for e+e- and μp collisions, the Goldhaber parametrization, as well as string-like models, fail in describing the hadron-hadron data. Better fits are obtained in the framework of surface-emitting fireball-like models, both when including and excluding hydrodynamical expansion of nuclear matter. Our results indicate that pion radiation occurs at earlier stages of matter evolution than in nuclear collisions.

Original languageEnglish (US)
Pages (from-to)405-414
Number of pages10
JournalZeitschrift fur Physik C-Particles and Fields
Volume71
Issue number3
DOIs
StatePublished - Jul 1996

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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