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; B. Hong; 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

doi:10.1103/physrevc.67.034907

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, B. HongJ. 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

Department of Physics

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75 Citations (Scopus)

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 language	English
Article number	034907
Pages (from-to)	349071-3490719
Number of pages	3141649
Journal	Physical Review C - Nuclear Physics
Volume	67
Issue number	3
DOIs	https://doi.org/10.1103/physrevc.67.034907
Publication status	Published - 2003 Mar 1

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1103/physrevc.67.034907

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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, Y., Hartmann, O. N., Hildenbrand, K. D., ... 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. Article 034907. https://doi.org/10.1103/physrevc.67.034907

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, 034907, pp. 349071-3490719. https://doi.org/10.1103/physrevc.67.034907

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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. D{\v z}elalija and C. Finck and Z. Fodor and A. Gobbi and Yu Grishkin and Hartmann, {O. N.} and Hildenbrand, {K. D.} and B. 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-Wilczy{\'n}ska and V. Smolyankin and Stockmeier, {M. R.} and G. Stoicea and Z. Tyminski and P. Wagner and K. Wi{\'s}niewski and D. Wohlfarth and I. Yushmanov and A. Zhilin",

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month = mar,

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doi = "10.1103/physrevc.67.034907",

language = "English",

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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, B.

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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U2 - 10.1103/physrevc.67.034907

DO - 10.1103/physrevc.67.034907

M3 - Article

AN - SCOPUS:0038580240

SN - 0556-2813

VL - 67

SP - 349071

EP - 3490719

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

IS - 3

M1 - 034907

ER -

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

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