Multiplicity dependence of the pion source in S+A collisions at the CERN SPS

K. Kaimi, H. Bøggild, J. Boissevain, Michael G. Cherney, J. Dodd, S. Esumi, C. W. Fabjan, D. E. Fields, A. Franz, B. Holzer, T. J. Humanic, B. Jacak, R. Jayanti, H. Kalechofsky, T. Kobayashi, Y. Y. Lee, M. Leltchouk, B. Lörstad, N. Maeda, A. Medvedev & 20 others A. Miyabayashi, M. Murray, S. Nishimura, E. Noteboom, S. U. Pandey, F. Piuz, V. Polychronakos, M. Potekhin, G. Poulard, A. Sakaguchi, J. Schmidt-Sorensen, J. Simon-Gillo, W. Sondheim, T. Sugitate, J. P. Sullivan, Y. Sumi, H. Van Hecke, W. J. Willis, K. Wolf, N. Xu

Research output: Contribution to journalArticle

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Abstract

The emission of pions from relativistic heavy-ion collisions of S+S, S+Ag and S+Pb at 200 GeV/nucleon is characterized using two-particle interferometry. The multiplicity dependence of the pion source parameters near mid-rapidity is studied. The transversal (Rt) and longitudinal (Hl) pion source parameters are independent of the initial nuclei in the interaction and increase with increasing multiplicity. This suggests that the freeze-out process is governed mainly by the particle multiplicity. The multiplicity dependence is weaker than that expected from a simple model of a freeze-out at a constant density.

Original languageEnglish
Pages (from-to)619-625
Number of pages7
JournalZeitschrift für Physik C Particles and Fields
Volume75
Issue number4
StatePublished - Aug 1997

Fingerprint

Heavy ions
Interferometry
pions
collisions
ionic collisions
interferometry
nuclei
interactions

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

Cite this

Kaimi, K., Bøggild, H., Boissevain, J., Cherney, M. G., Dodd, J., Esumi, S., ... Xu, N. (1997). Multiplicity dependence of the pion source in S+A collisions at the CERN SPS. Zeitschrift für Physik C Particles and Fields, 75(4), 619-625.

Multiplicity dependence of the pion source in S+A collisions at the CERN SPS. / Kaimi, K.; Bøggild, H.; Boissevain, J.; Cherney, Michael G.; Dodd, J.; Esumi, S.; Fabjan, C. W.; Fields, D. E.; Franz, A.; Holzer, B.; Humanic, T. J.; Jacak, B.; Jayanti, R.; Kalechofsky, H.; Kobayashi, T.; Lee, Y. Y.; Leltchouk, M.; Lörstad, B.; Maeda, N.; Medvedev, A.; Miyabayashi, A.; Murray, M.; Nishimura, S.; Noteboom, E.; Pandey, S. U.; Piuz, F.; Polychronakos, V.; Potekhin, M.; Poulard, G.; Sakaguchi, A.; Schmidt-Sorensen, J.; Simon-Gillo, J.; Sondheim, W.; Sugitate, T.; Sullivan, J. P.; Sumi, Y.; Van Hecke, H.; Willis, W. J.; Wolf, K.; Xu, N.

In: Zeitschrift für Physik C Particles and Fields, Vol. 75, No. 4, 08.1997, p. 619-625.

Research output: Contribution to journalArticle

Kaimi, K, Bøggild, H, Boissevain, J, Cherney, MG, Dodd, J, Esumi, S, Fabjan, CW, Fields, DE, Franz, A, Holzer, B, Humanic, TJ, Jacak, B, Jayanti, R, Kalechofsky, H, Kobayashi, T, Lee, YY, Leltchouk, M, Lörstad, B, Maeda, N, Medvedev, A, Miyabayashi, A, Murray, M, Nishimura, S, Noteboom, E, Pandey, SU, Piuz, F, Polychronakos, V, Potekhin, M, Poulard, G, Sakaguchi, A, Schmidt-Sorensen, J, Simon-Gillo, J, Sondheim, W, Sugitate, T, Sullivan, JP, Sumi, Y, Van Hecke, H, Willis, WJ, Wolf, K & Xu, N 1997, 'Multiplicity dependence of the pion source in S+A collisions at the CERN SPS', Zeitschrift für Physik C Particles and Fields, vol. 75, no. 4, pp. 619-625.
Kaimi, K. ; Bøggild, H. ; Boissevain, J. ; Cherney, Michael G. ; Dodd, J. ; Esumi, S. ; Fabjan, C. W. ; Fields, D. E. ; Franz, A. ; Holzer, B. ; Humanic, T. J. ; Jacak, B. ; Jayanti, R. ; Kalechofsky, H. ; Kobayashi, T. ; Lee, Y. Y. ; Leltchouk, M. ; Lörstad, B. ; Maeda, N. ; Medvedev, A. ; Miyabayashi, A. ; Murray, M. ; Nishimura, S. ; Noteboom, E. ; Pandey, S. U. ; Piuz, F. ; Polychronakos, V. ; Potekhin, M. ; Poulard, G. ; Sakaguchi, A. ; Schmidt-Sorensen, J. ; Simon-Gillo, J. ; Sondheim, W. ; Sugitate, T. ; Sullivan, J. P. ; Sumi, Y. ; Van Hecke, H. ; Willis, W. J. ; Wolf, K. ; Xu, N. / Multiplicity dependence of the pion source in S+A collisions at the CERN SPS. In: Zeitschrift für Physik C Particles and Fields. 1997 ; Vol. 75, No. 4. pp. 619-625.
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abstract = "The emission of pions from relativistic heavy-ion collisions of S+S, S+Ag and S+Pb at 200 GeV/nucleon is characterized using two-particle interferometry. The multiplicity dependence of the pion source parameters near mid-rapidity is studied. The transversal (Rt) and longitudinal (Hl) pion source parameters are independent of the initial nuclei in the interaction and increase with increasing multiplicity. This suggests that the freeze-out process is governed mainly by the particle multiplicity. The multiplicity dependence is weaker than that expected from a simple model of a freeze-out at a constant density.",
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AU - Kaimi, K.

AU - Bøggild, H.

AU - Boissevain, J.

AU - Cherney, Michael G.

AU - Dodd, J.

AU - Esumi, S.

AU - Fabjan, C. W.

AU - Fields, D. E.

AU - Franz, A.

AU - Holzer, B.

AU - Humanic, T. J.

AU - Jacak, B.

AU - Jayanti, R.

AU - Kalechofsky, H.

AU - Kobayashi, T.

AU - Lee, Y. Y.

AU - Leltchouk, M.

AU - Lörstad, B.

AU - Maeda, N.

AU - Medvedev, A.

AU - Miyabayashi, A.

AU - Murray, M.

AU - Nishimura, S.

AU - Noteboom, E.

AU - Pandey, S. U.

AU - Piuz, F.

AU - Polychronakos, V.

AU - Potekhin, M.

AU - Poulard, G.

AU - Sakaguchi, A.

AU - Schmidt-Sorensen, J.

AU - Simon-Gillo, J.

AU - Sondheim, W.

AU - Sugitate, T.

AU - Sullivan, J. P.

AU - Sumi, Y.

AU - Van Hecke, H.

AU - Willis, W. J.

AU - Wolf, K.

AU - Xu, N.

PY - 1997/8

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N2 - The emission of pions from relativistic heavy-ion collisions of S+S, S+Ag and S+Pb at 200 GeV/nucleon is characterized using two-particle interferometry. The multiplicity dependence of the pion source parameters near mid-rapidity is studied. The transversal (Rt) and longitudinal (Hl) pion source parameters are independent of the initial nuclei in the interaction and increase with increasing multiplicity. This suggests that the freeze-out process is governed mainly by the particle multiplicity. The multiplicity dependence is weaker than that expected from a simple model of a freeze-out at a constant density.

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