Identified pion interferometry in heavy-ion collisions at CERN

H. Bøggild, J. Boissevain, Michael G. Cherney, J. Dodd, J. Downing, S. Esumi, C. W. Fabjan, A. Franz, K. H. Hansen, T. Humanic, T. Ikemoto, B. Jacak, H. Kalechofsky, T. Kobayashi, R. Kvatadze, Y. Y. Lee, M. Leltchouk, B. Lorstad, N. Maeda, Y. Miake & 22 others A. Miyabayashi, M. Murray, S. Nagamiya, S. Nishimura, S. U. Pandey, F. Piuz, V. Polychronakos, M. Potekhin, G. Poulard, D. Rahm, J. M. Rieubland, A. Sakaguchi, M. Sarabura, K. Shigaki, J. Simon-Gillo, W. Sondheim, T. Sugitate, J. Sullivan, Y. Sumi, H. Sletten, H. van Hecke, W. J. Willis

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Abstract

π+π+ correlations from S + Pb collisions at 200 GeV/c per nucleon, measured by the focusing spectrometer of the NA44 experiment at CERN, are presented. The large data set, particularly at small values of Qinv, allows determination of the detailed shape of the correlation function. We construct the background by event mixing, and correct for resolution, Coulomb interaction, and distortion of single-particle spectra which produce effects large compared to the statistical errors at small Qinv. An exponential, rather than gaussian, source distribution is slightly favoured, but both are statistically acceptable.

Original languageEnglish
Pages (from-to)510-516
Number of pages7
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume302
Issue number4
DOIs
StatePublished - Apr 1 1993

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ionic collisions
interferometry
pions
spectrometers
collisions
interactions

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

Cite this

Identified pion interferometry in heavy-ion collisions at CERN. / Bøggild, H.; Boissevain, J.; Cherney, Michael G.; Dodd, J.; Downing, J.; Esumi, S.; Fabjan, C. W.; Franz, A.; Hansen, K. H.; Humanic, T.; Ikemoto, T.; Jacak, B.; Kalechofsky, H.; Kobayashi, T.; Kvatadze, R.; Lee, Y. Y.; Leltchouk, M.; Lorstad, B.; Maeda, N.; Miake, Y.; Miyabayashi, A.; Murray, M.; Nagamiya, S.; Nishimura, S.; Pandey, S. U.; Piuz, F.; Polychronakos, V.; Potekhin, M.; Poulard, G.; Rahm, D.; Rieubland, J. M.; Sakaguchi, A.; Sarabura, M.; Shigaki, K.; Simon-Gillo, J.; Sondheim, W.; Sugitate, T.; Sullivan, J.; Sumi, Y.; Sletten, H.; van Hecke, H.; Willis, W. J.

In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 302, No. 4, 01.04.1993, p. 510-516.

Research output: Contribution to journalArticle

Bøggild, H, Boissevain, J, Cherney, MG, Dodd, J, Downing, J, Esumi, S, Fabjan, CW, Franz, A, Hansen, KH, Humanic, T, Ikemoto, T, Jacak, B, Kalechofsky, H, Kobayashi, T, Kvatadze, R, Lee, YY, Leltchouk, M, Lorstad, B, Maeda, N, Miake, Y, Miyabayashi, A, Murray, M, Nagamiya, S, Nishimura, S, Pandey, SU, Piuz, F, Polychronakos, V, Potekhin, M, Poulard, G, Rahm, D, Rieubland, JM, Sakaguchi, A, Sarabura, M, Shigaki, K, Simon-Gillo, J, Sondheim, W, Sugitate, T, Sullivan, J, Sumi, Y, Sletten, H, van Hecke, H & Willis, WJ 1993, 'Identified pion interferometry in heavy-ion collisions at CERN', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 302, no. 4, pp. 510-516. https://doi.org/10.1016/0370-2693(93)90435-K
Bøggild, H. ; Boissevain, J. ; Cherney, Michael G. ; Dodd, J. ; Downing, J. ; Esumi, S. ; Fabjan, C. W. ; Franz, A. ; Hansen, K. H. ; Humanic, T. ; Ikemoto, T. ; Jacak, B. ; Kalechofsky, H. ; Kobayashi, T. ; Kvatadze, R. ; Lee, Y. Y. ; Leltchouk, M. ; Lorstad, B. ; Maeda, N. ; Miake, Y. ; Miyabayashi, A. ; Murray, M. ; Nagamiya, S. ; Nishimura, S. ; Pandey, S. U. ; Piuz, F. ; Polychronakos, V. ; Potekhin, M. ; Poulard, G. ; Rahm, D. ; Rieubland, J. M. ; Sakaguchi, A. ; Sarabura, M. ; Shigaki, K. ; Simon-Gillo, J. ; Sondheim, W. ; Sugitate, T. ; Sullivan, J. ; Sumi, Y. ; Sletten, H. ; van Hecke, H. ; Willis, W. J. / Identified pion interferometry in heavy-ion collisions at CERN. In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. 1993 ; Vol. 302, No. 4. pp. 510-516.
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T1 - Identified pion interferometry in heavy-ion collisions at CERN

AU - Bøggild, H.

AU - Boissevain, J.

AU - Cherney, Michael G.

AU - Dodd, J.

AU - Downing, J.

AU - Esumi, S.

AU - Fabjan, C. W.

AU - Franz, A.

AU - Hansen, K. H.

AU - Humanic, T.

AU - Ikemoto, T.

AU - Jacak, B.

AU - Kalechofsky, H.

AU - Kobayashi, T.

AU - Kvatadze, R.

AU - Lee, Y. Y.

AU - Leltchouk, M.

AU - Lorstad, B.

AU - Maeda, N.

AU - Miake, Y.

AU - Miyabayashi, A.

AU - Murray, M.

AU - Nagamiya, S.

AU - Nishimura, S.

AU - Pandey, S. U.

AU - Piuz, F.

AU - Polychronakos, V.

AU - Potekhin, M.

AU - Poulard, G.

AU - Rahm, D.

AU - Rieubland, J. M.

AU - Sakaguchi, A.

AU - Sarabura, M.

AU - Shigaki, K.

AU - Simon-Gillo, J.

AU - Sondheim, W.

AU - Sugitate, T.

AU - Sullivan, J.

AU - Sumi, Y.

AU - Sletten, H.

AU - van Hecke, H.

AU - Willis, W. J.

PY - 1993/4/1

Y1 - 1993/4/1

N2 - π+π+ correlations from S + Pb collisions at 200 GeV/c per nucleon, measured by the focusing spectrometer of the NA44 experiment at CERN, are presented. The large data set, particularly at small values of Qinv, allows determination of the detailed shape of the correlation function. We construct the background by event mixing, and correct for resolution, Coulomb interaction, and distortion of single-particle spectra which produce effects large compared to the statistical errors at small Qinv. An exponential, rather than gaussian, source distribution is slightly favoured, but both are statistically acceptable.

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