Angular dependence of Bose-Einstein correlations in interactions of π+ and K+ mesons with protons and nuclei at 250 GeV/c

N. M. Agababyan*, I. V. Ajinenko, M. R. Atayan, K. Belous, M. Charlet, P. V. Chliapnikov, 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, L. C S Oliveira, K. Olkiewicz, F. K. RizatdinovaE. K. Shabalina, L. N. Smirnova, M. D. Tabidze, L. A. Tikhonova, A. G. Tomaradze, F. Verbeure, S. A. Zotkin

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

The angular dependence of Bose-Einstein correlations is studied in interactions of π+ and K+ mesons with protons and nuclei at 250 GeV/c. The pion source is found to be elongated along the interaction axis in the c.m.s., with the ratio a between transverse and longitudinal dimension equal to 0.55±0.06 for the case of proton, 0.53±0.13 for the case of Al and 0.33±0.21 for the case of Au target. For meson-proton interactions, indication for an increase of the elongation is found with increasing event multiplicity, pair momentum and particle transverse momentum.

Original languageEnglish (US)
Pages (from-to)409-415
Number of pages7
JournalZeitschrift für Physik C Particles and Fields
Volume66
Issue number3
DOIs
StatePublished - Sep 1995

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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