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. Hong & 32 others J. 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

    Fingerprint

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

    ASJC Scopus subject areas

    • Nuclear and High Energy Physics

    Cite this

    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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    title = "Two-proton small-angle correlations in central heavy-ion collisions: A beam-energy- and system-size-dependent study",
    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.",
    author = "R. Kotte and Alard, {J. P.} and A. Andronic and V. Barret and Z. Basrak and N. Bastid and {Lotfi Benabderrhmane}, Mohamed and R. Čaplar and E. Cordier and P. Crochet and P. Dupieux and M. Dželalija and Z. Fodor and I. Ǧasparič and A. Gobbi and Y. Grishkin and Hartmann, {O. N.} and N. Herrmann and Hildenbrand, {K. D.} and B. Hong and J. Kecskemeti and Kim, {Y. J.} and M. Kirejczyk and P. Koczon and M. Korolija and T. Kress and A. Lebedev and Y. Leifels and X. Lopez and M. Merschmeyer and J. M{\"o}sner and W. Neubert and D. Pelte and M. Petrovici and F. Rami and W. Reisdorf and {De Schauenburg}, B. and A. Sch{\"u}ttauf and Z. Seres and B. Sikora and Sim, {K. S.} and V. Simion and K. Siwek-Wilczyńska and V. Smolyankin and G. Stoicea and Z. Tyminski and P. Wagner and K. Wiśniewski and D. Wohlfarth and Xiao, {Z. G.} and Y. Yushmanov and A. Zhilin",
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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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    U2 - 10.1140/epja/i2004-10075-y

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