MT dependence of boson interferometry in heavy ion collisions at the CERN SPS

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

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Abstract

First results of the mT dependence of π+π+ and K+K+ correlations from S+Pb collisions at 200 GeV /c per nucleon measured by the focusing spectrometer of the NA44 experiment at CERN are presented. Multidimensional fits characterize the pion and kaon emission volume. The pion radius parameter decreases with increasing pT. Furthermore, the pion and kaon radii show a common 1/mT dependence. This behavior can be interpreted as a result of a strong momentum-position correlation arising from collective flow.

Original languageEnglish (US)
Pages (from-to)3340-3343
Number of pages4
JournalPhysical Review Letters
Volume74
Issue number17
DOIs
StatePublished - 1995

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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    Beker, H., Bøggild, H., Boissevain, J., Cherney, M., Dodd, J., Esumi, S., Fabjan, C. W., Fields, D. E., Franz, A., Hansen, K. H., Holzer, E. B., Humanic, T. J., Jacak, B. V., Jayanti, R., Kalechofsky, H., Kobayashi, T., Kvatadze, R., Lee, Y. Y., Leltchouk, M., ... Xu, N. (1995). MT dependence of boson interferometry in heavy ion collisions at the CERN SPS. Physical Review Letters, 74(17), 3340-3343. https://doi.org/10.1103/PhysRevLett.74.3340