K0 and Λ production in Ni+Ni collisions near threshold

M. Merschmeyer, X. Lopez, N. Bastid, P. Crochet, N. Herrmann, A. Andronic, V. Barret, Z. Basrak, Mohamed Lotfi Benabderrhmane, R. Čaplar, E. Cordier, P. Dupieux, M. Dželalija, Z. Fodor, I. Gašparić, Y. Grishkin, O. N. Hartmann, K. D. Hildenbrand, B. Hong, T. I. Kang & 31 others J. Kecskemeti, Y. J. Kim, M. Kirejczyk, M. Kiš, T. Matulewicz, P. Koczon, M. Korolija, R. Kotte, A. Lebedev, Y. Leifels, A. Mangiarotti, D. Pelte, M. Petrovici, F. Rami, W. Reisdorf, M. S. Ryu, A. Schüttauf, Z. Seres, B. Sikora, K. S. Sim, V. Simion, K. Siwek-Wilczyńska, V. Smolyankin, G. Stoicea, Z. Tyminski, K. Wiśniewski, Z. G. Xiao, H. S. Xu, I. Yushmanov, X. Y. Zhang, A. Zhilin

    Research output: Contribution to journalArticle

    Abstract

    New results concerning the production of neutral strange particles, K0 and Λ in Ni+Ni collisions at 1.93A GeV, measured with the FOPI detector at GSI Darmstadt, are presented. Rapidity density distributions and Boltzmann slope parameter distributions are measured in nearly the full phase space of the reaction. The observables are compared to existing K+ and proton data. While the K0 data agree with previously reported K+ measurements, the Λ distributions show a different behavior relative to that of protons. The strangeness balance and the production yield per participating nucleon as a function of the centrality of the reaction are discussed, for the first time at GSI Schwerionen Synchrotron (SIS) energies.

    Original languageEnglish (US)
    Article number024906
    JournalPhysical Review C - Nuclear Physics
    Volume76
    Issue number2
    DOIs
    StatePublished - Aug 16 2007

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    collisions
    thresholds
    protons
    strangeness
    density distribution
    synchrotrons
    slopes
    detectors
    energy

    ASJC Scopus subject areas

    • Nuclear and High Energy Physics

    Cite this

    Merschmeyer, M., Lopez, X., Bastid, N., Crochet, P., Herrmann, N., Andronic, A., ... Zhilin, A. (2007). K0 and Λ production in Ni+Ni collisions near threshold. Physical Review C - Nuclear Physics, 76(2), [024906]. https://doi.org/10.1103/PhysRevC.76.024906

    K0 and Λ production in Ni+Ni collisions near threshold. / Merschmeyer, M.; Lopez, X.; Bastid, N.; Crochet, P.; Herrmann, N.; Andronic, A.; Barret, V.; Basrak, Z.; Lotfi Benabderrhmane, Mohamed; Čaplar, R.; Cordier, E.; Dupieux, P.; Dželalija, M.; Fodor, Z.; Gašparić, I.; Grishkin, Y.; Hartmann, O. N.; Hildenbrand, K. D.; Hong, B.; Kang, T. I.; Kecskemeti, J.; Kim, Y. J.; Kirejczyk, M.; Kiš, M.; Matulewicz, T.; Koczon, P.; Korolija, M.; Kotte, R.; Lebedev, A.; Leifels, Y.; Mangiarotti, A.; Pelte, D.; Petrovici, M.; Rami, F.; Reisdorf, W.; Ryu, M. S.; Schüttauf, A.; Seres, Z.; Sikora, B.; Sim, K. S.; Simion, V.; Siwek-Wilczyńska, K.; Smolyankin, V.; Stoicea, G.; Tyminski, Z.; Wiśniewski, K.; Xiao, Z. G.; Xu, H. S.; Yushmanov, I.; Zhang, X. Y.; Zhilin, A.

    In: Physical Review C - Nuclear Physics, Vol. 76, No. 2, 024906, 16.08.2007.

    Research output: Contribution to journalArticle

    Merschmeyer, M, Lopez, X, Bastid, N, Crochet, P, Herrmann, N, Andronic, A, Barret, V, Basrak, Z, Lotfi Benabderrhmane, M, Čaplar, R, Cordier, E, Dupieux, P, Dželalija, M, Fodor, Z, Gašparić, I, Grishkin, Y, Hartmann, ON, Hildenbrand, KD, Hong, B, Kang, TI, Kecskemeti, J, Kim, YJ, Kirejczyk, M, Kiš, M, Matulewicz, T, Koczon, P, Korolija, M, Kotte, R, Lebedev, A, Leifels, Y, Mangiarotti, A, Pelte, D, Petrovici, M, Rami, F, Reisdorf, W, Ryu, MS, Schüttauf, A, Seres, Z, Sikora, B, Sim, KS, Simion, V, Siwek-Wilczyńska, K, Smolyankin, V, Stoicea, G, Tyminski, Z, Wiśniewski, K, Xiao, ZG, Xu, HS, Yushmanov, I, Zhang, XY & Zhilin, A 2007, 'K0 and Λ production in Ni+Ni collisions near threshold', Physical Review C - Nuclear Physics, vol. 76, no. 2, 024906. https://doi.org/10.1103/PhysRevC.76.024906
    Merschmeyer M, Lopez X, Bastid N, Crochet P, Herrmann N, Andronic A et al. K0 and Λ production in Ni+Ni collisions near threshold. Physical Review C - Nuclear Physics. 2007 Aug 16;76(2). 024906. https://doi.org/10.1103/PhysRevC.76.024906
    Merschmeyer, M. ; Lopez, X. ; Bastid, N. ; Crochet, P. ; Herrmann, N. ; Andronic, A. ; Barret, V. ; Basrak, Z. ; Lotfi Benabderrhmane, Mohamed ; Čaplar, R. ; Cordier, E. ; Dupieux, P. ; Dželalija, M. ; Fodor, Z. ; Gašparić, I. ; Grishkin, Y. ; Hartmann, O. N. ; Hildenbrand, K. D. ; Hong, B. ; Kang, T. I. ; Kecskemeti, J. ; Kim, Y. J. ; Kirejczyk, M. ; Kiš, M. ; Matulewicz, T. ; Koczon, P. ; Korolija, M. ; Kotte, R. ; Lebedev, A. ; Leifels, Y. ; Mangiarotti, A. ; Pelte, D. ; Petrovici, M. ; Rami, F. ; Reisdorf, W. ; Ryu, M. S. ; Schüttauf, A. ; Seres, Z. ; Sikora, B. ; Sim, K. S. ; Simion, V. ; Siwek-Wilczyńska, K. ; Smolyankin, V. ; Stoicea, G. ; Tyminski, Z. ; Wiśniewski, K. ; Xiao, Z. G. ; Xu, H. S. ; Yushmanov, I. ; Zhang, X. Y. ; Zhilin, A. / K0 and Λ production in Ni+Ni collisions near threshold. In: Physical Review C - Nuclear Physics. 2007 ; Vol. 76, No. 2.
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    title = "K0 and Λ production in Ni+Ni collisions near threshold",
    abstract = "New results concerning the production of neutral strange particles, K0 and Λ in Ni+Ni collisions at 1.93A GeV, measured with the FOPI detector at GSI Darmstadt, are presented. Rapidity density distributions and Boltzmann slope parameter distributions are measured in nearly the full phase space of the reaction. The observables are compared to existing K+ and proton data. While the K0 data agree with previously reported K+ measurements, the Λ distributions show a different behavior relative to that of protons. The strangeness balance and the production yield per participating nucleon as a function of the centrality of the reaction are discussed, for the first time at GSI Schwerionen Synchrotron (SIS) energies.",
    author = "M. Merschmeyer and X. Lopez and N. Bastid and P. Crochet and N. Herrmann and A. Andronic and V. Barret and Z. Basrak and {Lotfi Benabderrhmane}, Mohamed and R. Čaplar and E. Cordier and P. Dupieux and M. Dželalija and Z. Fodor and I. Gašparić and Y. Grishkin and Hartmann, {O. N.} and Hildenbrand, {K. D.} and B. Hong and Kang, {T. I.} and J. Kecskemeti and Kim, {Y. J.} and M. Kirejczyk and M. Kiš and T. Matulewicz and P. Koczon and M. Korolija and R. Kotte and A. Lebedev and Y. Leifels and A. Mangiarotti and D. Pelte and M. Petrovici and F. Rami and W. Reisdorf and Ryu, {M. S.} 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 K. Wiśniewski and Xiao, {Z. G.} and Xu, {H. S.} and I. Yushmanov and Zhang, {X. Y.} and A. Zhilin",
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    T1 - K0 and Λ production in Ni+Ni collisions near threshold

    AU - Merschmeyer, M.

    AU - Lopez, X.

    AU - Bastid, N.

    AU - Crochet, P.

    AU - Herrmann, N.

    AU - Andronic, A.

    AU - Barret, V.

    AU - Basrak, Z.

    AU - Lotfi Benabderrhmane, Mohamed

    AU - Čaplar, R.

    AU - Cordier, E.

    AU - Dupieux, P.

    AU - Dželalija, M.

    AU - Fodor, Z.

    AU - Gašparić, I.

    AU - Grishkin, Y.

    AU - Hartmann, O. N.

    AU - Hildenbrand, K. D.

    AU - Hong, B.

    AU - Kang, T. I.

    AU - Kecskemeti, J.

    AU - Kim, Y. J.

    AU - Kirejczyk, M.

    AU - Kiš, M.

    AU - Matulewicz, T.

    AU - Koczon, P.

    AU - Korolija, M.

    AU - Kotte, R.

    AU - Lebedev, A.

    AU - Leifels, Y.

    AU - Mangiarotti, A.

    AU - Pelte, D.

    AU - Petrovici, M.

    AU - Rami, F.

    AU - Reisdorf, W.

    AU - Ryu, M. S.

    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 - Wiśniewski, K.

    AU - Xiao, Z. G.

    AU - Xu, H. S.

    AU - Yushmanov, I.

    AU - Zhang, X. Y.

    AU - Zhilin, A.

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    N2 - New results concerning the production of neutral strange particles, K0 and Λ in Ni+Ni collisions at 1.93A GeV, measured with the FOPI detector at GSI Darmstadt, are presented. Rapidity density distributions and Boltzmann slope parameter distributions are measured in nearly the full phase space of the reaction. The observables are compared to existing K+ and proton data. While the K0 data agree with previously reported K+ measurements, the Λ distributions show a different behavior relative to that of protons. The strangeness balance and the production yield per participating nucleon as a function of the centrality of the reaction are discussed, for the first time at GSI Schwerionen Synchrotron (SIS) energies.

    AB - New results concerning the production of neutral strange particles, K0 and Λ in Ni+Ni collisions at 1.93A GeV, measured with the FOPI detector at GSI Darmstadt, are presented. Rapidity density distributions and Boltzmann slope parameter distributions are measured in nearly the full phase space of the reaction. The observables are compared to existing K+ and proton data. While the K0 data agree with previously reported K+ measurements, the Λ distributions show a different behavior relative to that of protons. The strangeness balance and the production yield per participating nucleon as a function of the centrality of the reaction are discussed, for the first time at GSI Schwerionen Synchrotron (SIS) energies.

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