Two-proton small-angle correlations in central heavy-ion collisions: A beam-energy- and system-size-dependent study

R. Kotte, J. P. Alard, A. Andronic, V. Barret, Z. Basrak, N. Bastid, Mohamed Lotfi Benabderrhmane, R. Čaplar, E. Cordier, P. Crochet, P. Dupieux, M. Dželalija, Z. Fodor, I. Ǧasparič, A. Gobbi, Y. Grishkin, O. N. Hartmann, N. Herrmann, K. D. Hildenbrand, B. HongJ. Kecskemeti, Y. J. Kim, M. Kirejczyk, P. Koczon, M. Korolija, T. Kress, A. Lebedev, Y. Leifels, X. Lopez, M. Merschmeyer, J. Mösner, W. Neubert, D. Pelte, M. Petrovici, F. Rami, W. Reisdorf, B. De Schauenburg, A. Schüttauf, Z. Seres, B. Sikora, K. S. Sim, V. Simion, K. Siwek-Wilczyńska, V. Smolyankin, G. Stoicea, Z. Tyminski, P. Wagner, K. Wiśniewski, D. Wohlfarth, Z. G. Xiao, Y. Yushmanov, A. Zhilin

Research output: Contribution to journalArticle

Abstract

Small-angle correlations of pairs of protons emitted in central collisions of Ca + Ca, Ru + Ru and Au + Au at beam energies from 400 to 1500 MeV per nucleon are investigated with the FOPI detector system at SIS/GSI Darmstadt. Dependences on system size and beam energy are presented which extend the experimental data basis of pp correlations in the SIS energy range substantially. The size of the proton-emitting source is estimated by comparing the experimental data with the output of a final-state interaction model which utilizes either static Gaussian sources or the one-body phase-space distribution of protons provided by the BUU transport approach. The trends in the experimental data, i. e. system size and beam energy dependences, are well reproduced by this hybrid model. However, the pp correlation function is found rather insensitive to the stiffness of the equation of state entering the transport model calculations.

Original languageEnglish (US)
Pages (from-to)271-278
Number of pages8
JournalEuropean Physical Journal A
Volume23
Issue number2
DOIs
StatePublished - Feb 1 2005

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ionic collisions
protons
energy
stiffness
equations of state
trends
collisions
output
detectors
interactions

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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Two-proton small-angle correlations in central heavy-ion collisions : A beam-energy- and system-size-dependent study. / Kotte, R.; Alard, J. P.; Andronic, A.; Barret, V.; Basrak, Z.; Bastid, N.; Lotfi Benabderrhmane, Mohamed; Čaplar, R.; Cordier, E.; Crochet, P.; Dupieux, P.; Dželalija, M.; Fodor, Z.; Ǧasparič, I.; Gobbi, A.; Grishkin, Y.; Hartmann, O. N.; Herrmann, N.; Hildenbrand, K. D.; Hong, B.; Kecskemeti, J.; Kim, Y. J.; Kirejczyk, M.; Koczon, P.; Korolija, M.; Kress, T.; Lebedev, A.; Leifels, Y.; Lopez, X.; Merschmeyer, M.; Mösner, J.; Neubert, W.; Pelte, D.; Petrovici, M.; Rami, F.; Reisdorf, W.; De Schauenburg, B.; Schüttauf, A.; Seres, Z.; Sikora, B.; Sim, K. S.; Simion, V.; Siwek-Wilczyńska, K.; Smolyankin, V.; Stoicea, G.; Tyminski, Z.; Wagner, P.; Wiśniewski, K.; Wohlfarth, D.; Xiao, Z. G.; Yushmanov, Y.; Zhilin, A.

In: European Physical Journal A, Vol. 23, No. 2, 01.02.2005, p. 271-278.

Research output: Contribution to journalArticle

Kotte, R, Alard, JP, Andronic, A, Barret, V, Basrak, Z, Bastid, N, Lotfi Benabderrhmane, M, Čaplar, R, Cordier, E, Crochet, P, Dupieux, P, Dželalija, M, Fodor, Z, Ǧasparič, I, Gobbi, A, Grishkin, Y, Hartmann, ON, Herrmann, N, Hildenbrand, KD, Hong, B, Kecskemeti, J, Kim, YJ, Kirejczyk, M, Koczon, P, Korolija, M, Kress, T, Lebedev, A, Leifels, Y, Lopez, X, Merschmeyer, M, Mösner, J, Neubert, W, Pelte, D, Petrovici, M, Rami, F, Reisdorf, W, De Schauenburg, B, Schüttauf, A, Seres, Z, Sikora, B, Sim, KS, Simion, V, Siwek-Wilczyńska, K, Smolyankin, V, Stoicea, G, Tyminski, Z, Wagner, P, Wiśniewski, K, Wohlfarth, D, Xiao, ZG, Yushmanov, Y & Zhilin, A 2005, 'Two-proton small-angle correlations in central heavy-ion collisions: A beam-energy- and system-size-dependent study', European Physical Journal A, vol. 23, no. 2, pp. 271-278. https://doi.org/10.1140/epja/i2004-10075-y
Kotte, R. ; Alard, J. P. ; Andronic, A. ; Barret, V. ; Basrak, Z. ; Bastid, N. ; Lotfi Benabderrhmane, Mohamed ; Čaplar, R. ; Cordier, E. ; Crochet, P. ; Dupieux, P. ; Dželalija, M. ; Fodor, Z. ; Ǧasparič, I. ; Gobbi, A. ; Grishkin, Y. ; Hartmann, O. N. ; Herrmann, N. ; Hildenbrand, K. D. ; Hong, B. ; Kecskemeti, J. ; Kim, Y. J. ; Kirejczyk, M. ; Koczon, P. ; Korolija, M. ; Kress, T. ; Lebedev, A. ; Leifels, Y. ; Lopez, X. ; Merschmeyer, M. ; Mösner, J. ; Neubert, W. ; Pelte, D. ; Petrovici, M. ; Rami, F. ; Reisdorf, W. ; De Schauenburg, B. ; Schüttauf, A. ; Seres, Z. ; Sikora, B. ; Sim, K. S. ; Simion, V. ; Siwek-Wilczyńska, K. ; Smolyankin, V. ; Stoicea, G. ; Tyminski, Z. ; Wagner, P. ; Wiśniewski, K. ; Wohlfarth, D. ; Xiao, Z. G. ; Yushmanov, Y. ; Zhilin, A. / Two-proton small-angle correlations in central heavy-ion collisions : A beam-energy- and system-size-dependent study. In: European Physical Journal A. 2005 ; Vol. 23, No. 2. pp. 271-278.
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abstract = "Small-angle correlations of pairs of protons emitted in central collisions of Ca + Ca, Ru + Ru and Au + Au at beam energies from 400 to 1500 MeV per nucleon are investigated with the FOPI detector system at SIS/GSI Darmstadt. Dependences on system size and beam energy are presented which extend the experimental data basis of pp correlations in the SIS energy range substantially. The size of the proton-emitting source is estimated by comparing the experimental data with the output of a final-state interaction model which utilizes either static Gaussian sources or the one-body phase-space distribution of protons provided by the BUU transport approach. The trends in the experimental data, i. e. system size and beam energy dependences, are well reproduced by this hybrid model. However, the pp correlation function is found rather insensitive to the stiffness of the equation of state entering the transport model calculations.",
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T1 - Two-proton small-angle correlations in central heavy-ion collisions

T2 - A beam-energy- and system-size-dependent study

AU - Kotte, R.

AU - Alard, J. P.

AU - Andronic, A.

AU - Barret, V.

AU - Basrak, Z.

AU - Bastid, N.

AU - Lotfi Benabderrhmane, Mohamed

AU - Čaplar, R.

AU - Cordier, E.

AU - Crochet, P.

AU - Dupieux, P.

AU - Dželalija, M.

AU - Fodor, Z.

AU - Ǧasparič, I.

AU - Gobbi, A.

AU - Grishkin, Y.

AU - Hartmann, O. N.

AU - Herrmann, N.

AU - Hildenbrand, K. D.

AU - Hong, B.

AU - Kecskemeti, J.

AU - Kim, Y. J.

AU - Kirejczyk, M.

AU - Koczon, P.

AU - Korolija, M.

AU - Kress, T.

AU - Lebedev, A.

AU - Leifels, Y.

AU - Lopez, X.

AU - Merschmeyer, M.

AU - Mösner, J.

AU - Neubert, W.

AU - Pelte, D.

AU - Petrovici, M.

AU - Rami, F.

AU - Reisdorf, W.

AU - De Schauenburg, B.

AU - Schüttauf, A.

AU - Seres, Z.

AU - Sikora, B.

AU - Sim, K. S.

AU - Simion, V.

AU - Siwek-Wilczyńska, K.

AU - Smolyankin, V.

AU - Stoicea, G.

AU - Tyminski, Z.

AU - Wagner, P.

AU - Wiśniewski, K.

AU - Wohlfarth, D.

AU - Xiao, Z. G.

AU - Yushmanov, Y.

AU - Zhilin, A.

PY - 2005/2/1

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N2 - Small-angle correlations of pairs of protons emitted in central collisions of Ca + Ca, Ru + Ru and Au + Au at beam energies from 400 to 1500 MeV per nucleon are investigated with the FOPI detector system at SIS/GSI Darmstadt. Dependences on system size and beam energy are presented which extend the experimental data basis of pp correlations in the SIS energy range substantially. The size of the proton-emitting source is estimated by comparing the experimental data with the output of a final-state interaction model which utilizes either static Gaussian sources or the one-body phase-space distribution of protons provided by the BUU transport approach. The trends in the experimental data, i. e. system size and beam energy dependences, are well reproduced by this hybrid model. However, the pp correlation function is found rather insensitive to the stiffness of the equation of state entering the transport model calculations.

AB - Small-angle correlations of pairs of protons emitted in central collisions of Ca + Ca, Ru + Ru and Au + Au at beam energies from 400 to 1500 MeV per nucleon are investigated with the FOPI detector system at SIS/GSI Darmstadt. Dependences on system size and beam energy are presented which extend the experimental data basis of pp correlations in the SIS energy range substantially. The size of the proton-emitting source is estimated by comparing the experimental data with the output of a final-state interaction model which utilizes either static Gaussian sources or the one-body phase-space distribution of protons provided by the BUU transport approach. The trends in the experimental data, i. e. system size and beam energy dependences, are well reproduced by this hybrid model. However, the pp correlation function is found rather insensitive to the stiffness of the equation of state entering the transport model calculations.

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