Directed flow in Au+Au, Xe+CsI, and Ni+Ni collisions and the nuclear equation of state

A. Andronic, W. Reisdorf, N. Herrmann, P. Crochet, J. P. Alard, V. Barret, Z. Basrak, N. Bastid, G. Berek, R. Caplar, A. Devismes, P. Dupieux, M. Dželalija, C. Finck, Z. Fodor, A. Gobbi, Yu Grishkin, O. N. Hartmann, K. D. Hildenbrand, Byungsik Hong & 31 others J. Kecskemeti, Y. J. Kim, M. Kirejczyk, P. Koczon, M. Korolija, R. Kotte, T. Kress, A. Lebedev, Y. Leifels, X. Lopez, M. Merschmeyer, W. Neubert, D. Pelte, M. Petrovici, F. Rami, B. De Schauenburg, A. Schüttauf, Z. Seres, B. Sikora, K. S. Sim, V. Simion, K. Siwek-Wilczyńska, V. Smolyankin, M. R. Stockmeier, G. Stoicea, Z. Tyminski, P. Wagner, K. Wiśniewski, D. Wohlfarth, I. Yushmanov, A. Zhilin

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Abstract

We present new experimental data on directed flow in collisions of Au + Au, Xe + CsI, and Ni + Ni at incident energies from 90A to 400A MeV. We study the centrality and system dependence of integral and differential directed flow for particles selected according to charge. All the features of the experimental data are compared with isospin quantum molecular dynamics (IQMD) model calculations in an attempt to extract information about the nuclear matter equation of state (EoS). We show that the combination of rapidity and transverse momentum analysis of directed flow allows to disentangle various parametrizations in the model. At 400A MeV, a soft EoS with momentum dependent interactions is best suited to explain the experimental data in Au + Au and Xe + CsI, but in the case of Ni + Ni the model underpredicts flow for any EoS. At 90A MeV incident beam energy, none of the IQMD parametrizations studied here are able to consistently explain the experimental data.

Original languageEnglish
Pages (from-to)349071-3490719
Number of pages3141649
JournalPhysical Review C - Nuclear Physics
Volume67
Issue number3
Publication statusPublished - 2003 Mar 1

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equations of state
collisions
molecular dynamics
momentum
transverse momentum
dynamic models
energy
interactions

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Nuclear and High Energy Physics

Cite this

Andronic, A., Reisdorf, W., Herrmann, N., Crochet, P., Alard, J. P., Barret, V., ... Zhilin, A. (2003). Directed flow in Au+Au, Xe+CsI, and Ni+Ni collisions and the nuclear equation of state. Physical Review C - Nuclear Physics, 67(3), 349071-3490719.

Directed flow in Au+Au, Xe+CsI, and Ni+Ni collisions and the nuclear equation of state. / Andronic, A.; Reisdorf, W.; Herrmann, N.; Crochet, P.; Alard, J. P.; Barret, V.; Basrak, Z.; Bastid, N.; Berek, G.; Caplar, R.; Devismes, A.; Dupieux, P.; Dželalija, M.; Finck, C.; Fodor, Z.; Gobbi, A.; Grishkin, Yu; Hartmann, O. N.; Hildenbrand, K. D.; Hong, Byungsik; Kecskemeti, J.; Kim, Y. J.; Kirejczyk, M.; Koczon, P.; Korolija, M.; Kotte, R.; Kress, T.; Lebedev, A.; Leifels, Y.; Lopez, X.; Merschmeyer, M.; Neubert, W.; Pelte, D.; Petrovici, M.; Rami, F.; De Schauenburg, B.; Schüttauf, A.; Seres, Z.; Sikora, B.; Sim, K. S.; Simion, V.; Siwek-Wilczyńska, K.; Smolyankin, V.; Stockmeier, M. R.; Stoicea, G.; Tyminski, Z.; Wagner, P.; Wiśniewski, K.; Wohlfarth, D.; Yushmanov, I.; Zhilin, A.

In: Physical Review C - Nuclear Physics, Vol. 67, No. 3, 01.03.2003, p. 349071-3490719.

Research output: Contribution to journalArticle

Andronic, A, Reisdorf, W, Herrmann, N, Crochet, P, Alard, JP, Barret, V, Basrak, Z, Bastid, N, Berek, G, Caplar, R, Devismes, A, Dupieux, P, Dželalija, M, Finck, C, Fodor, Z, Gobbi, A, Grishkin, Y, Hartmann, ON, Hildenbrand, KD, Hong, B, Kecskemeti, J, Kim, YJ, Kirejczyk, M, Koczon, P, Korolija, M, Kotte, R, Kress, T, Lebedev, A, Leifels, Y, Lopez, X, Merschmeyer, M, Neubert, W, Pelte, D, Petrovici, M, Rami, F, De Schauenburg, B, Schüttauf, A, Seres, Z, Sikora, B, Sim, KS, Simion, V, Siwek-Wilczyńska, K, Smolyankin, V, Stockmeier, MR, Stoicea, G, Tyminski, Z, Wagner, P, Wiśniewski, K, Wohlfarth, D, Yushmanov, I & Zhilin, A 2003, 'Directed flow in Au+Au, Xe+CsI, and Ni+Ni collisions and the nuclear equation of state', Physical Review C - Nuclear Physics, vol. 67, no. 3, pp. 349071-3490719.
Andronic A, Reisdorf W, Herrmann N, Crochet P, Alard JP, Barret V et al. Directed flow in Au+Au, Xe+CsI, and Ni+Ni collisions and the nuclear equation of state. Physical Review C - Nuclear Physics. 2003 Mar 1;67(3):349071-3490719.
Andronic, A. ; Reisdorf, W. ; Herrmann, N. ; Crochet, P. ; Alard, J. P. ; Barret, V. ; Basrak, Z. ; Bastid, N. ; Berek, G. ; Caplar, R. ; Devismes, A. ; Dupieux, P. ; Dželalija, M. ; Finck, C. ; Fodor, Z. ; Gobbi, A. ; Grishkin, Yu ; Hartmann, O. N. ; Hildenbrand, K. D. ; Hong, Byungsik ; Kecskemeti, J. ; Kim, Y. J. ; Kirejczyk, M. ; Koczon, P. ; Korolija, M. ; Kotte, R. ; Kress, T. ; Lebedev, A. ; Leifels, Y. ; Lopez, X. ; Merschmeyer, M. ; Neubert, W. ; Pelte, D. ; Petrovici, M. ; Rami, F. ; De Schauenburg, B. ; Schüttauf, A. ; Seres, Z. ; Sikora, B. ; Sim, K. S. ; Simion, V. ; Siwek-Wilczyńska, K. ; Smolyankin, V. ; Stockmeier, M. R. ; Stoicea, G. ; Tyminski, Z. ; Wagner, P. ; Wiśniewski, K. ; Wohlfarth, D. ; Yushmanov, I. ; Zhilin, A. / Directed flow in Au+Au, Xe+CsI, and Ni+Ni collisions and the nuclear equation of state. In: Physical Review C - Nuclear Physics. 2003 ; Vol. 67, No. 3. pp. 349071-3490719.
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title = "Directed flow in Au+Au, Xe+CsI, and Ni+Ni collisions and the nuclear equation of state",
abstract = "We present new experimental data on directed flow in collisions of Au + Au, Xe + CsI, and Ni + Ni at incident energies from 90A to 400A MeV. We study the centrality and system dependence of integral and differential directed flow for particles selected according to charge. All the features of the experimental data are compared with isospin quantum molecular dynamics (IQMD) model calculations in an attempt to extract information about the nuclear matter equation of state (EoS). We show that the combination of rapidity and transverse momentum analysis of directed flow allows to disentangle various parametrizations in the model. At 400A MeV, a soft EoS with momentum dependent interactions is best suited to explain the experimental data in Au + Au and Xe + CsI, but in the case of Ni + Ni the model underpredicts flow for any EoS. At 90A MeV incident beam energy, none of the IQMD parametrizations studied here are able to consistently explain the experimental data.",
author = "A. Andronic and W. Reisdorf and N. Herrmann and P. Crochet and Alard, {J. P.} and V. Barret and Z. Basrak and N. Bastid and G. Berek and R. Caplar and A. Devismes and P. Dupieux and M. Dželalija and C. Finck and Z. Fodor and A. Gobbi and Yu Grishkin and Hartmann, {O. N.} and Hildenbrand, {K. D.} and Byungsik Hong and J. Kecskemeti and Kim, {Y. J.} and M. Kirejczyk and P. Koczon and M. Korolija and R. Kotte and T. Kress and A. Lebedev and Y. Leifels and X. Lopez and M. Merschmeyer and W. Neubert and D. Pelte and M. Petrovici and F. Rami 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 Stockmeier, {M. R.} and G. Stoicea and Z. Tyminski and P. Wagner and K. Wiśniewski and D. Wohlfarth and I. Yushmanov and A. Zhilin",
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T1 - Directed flow in Au+Au, Xe+CsI, and Ni+Ni collisions and the nuclear equation of state

AU - Andronic, A.

AU - Reisdorf, W.

AU - Herrmann, N.

AU - Crochet, P.

AU - Alard, J. P.

AU - Barret, V.

AU - Basrak, Z.

AU - Bastid, N.

AU - Berek, G.

AU - Caplar, R.

AU - Devismes, A.

AU - Dupieux, P.

AU - Dželalija, M.

AU - Finck, C.

AU - Fodor, Z.

AU - Gobbi, A.

AU - Grishkin, Yu

AU - Hartmann, O. N.

AU - Hildenbrand, K. D.

AU - Hong, Byungsik

AU - Kecskemeti, J.

AU - Kim, Y. J.

AU - Kirejczyk, M.

AU - Koczon, P.

AU - Korolija, M.

AU - Kotte, R.

AU - Kress, T.

AU - Lebedev, A.

AU - Leifels, Y.

AU - Lopez, X.

AU - Merschmeyer, M.

AU - Neubert, W.

AU - Pelte, D.

AU - Petrovici, M.

AU - Rami, F.

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 - Stockmeier, M. R.

AU - Stoicea, G.

AU - Tyminski, Z.

AU - Wagner, P.

AU - Wiśniewski, K.

AU - Wohlfarth, D.

AU - Yushmanov, I.

AU - Zhilin, A.

PY - 2003/3/1

Y1 - 2003/3/1

N2 - We present new experimental data on directed flow in collisions of Au + Au, Xe + CsI, and Ni + Ni at incident energies from 90A to 400A MeV. We study the centrality and system dependence of integral and differential directed flow for particles selected according to charge. All the features of the experimental data are compared with isospin quantum molecular dynamics (IQMD) model calculations in an attempt to extract information about the nuclear matter equation of state (EoS). We show that the combination of rapidity and transverse momentum analysis of directed flow allows to disentangle various parametrizations in the model. At 400A MeV, a soft EoS with momentum dependent interactions is best suited to explain the experimental data in Au + Au and Xe + CsI, but in the case of Ni + Ni the model underpredicts flow for any EoS. At 90A MeV incident beam energy, none of the IQMD parametrizations studied here are able to consistently explain the experimental data.

AB - We present new experimental data on directed flow in collisions of Au + Au, Xe + CsI, and Ni + Ni at incident energies from 90A to 400A MeV. We study the centrality and system dependence of integral and differential directed flow for particles selected according to charge. All the features of the experimental data are compared with isospin quantum molecular dynamics (IQMD) model calculations in an attempt to extract information about the nuclear matter equation of state (EoS). We show that the combination of rapidity and transverse momentum analysis of directed flow allows to disentangle various parametrizations in the model. At 400A MeV, a soft EoS with momentum dependent interactions is best suited to explain the experimental data in Au + Au and Xe + CsI, but in the case of Ni + Ni the model underpredicts flow for any EoS. At 90A MeV incident beam energy, none of the IQMD parametrizations studied here are able to consistently explain the experimental data.

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EP - 3490719

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JF - Physical Review C - Nuclear Physics

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