Charged pion production in 4496Ru + 4496Ru collisions at 400A and 1528A MeV

B. Hong, Y. J. Kim, N. Herrmann, M. R. Stockmeier, A. Andronic, V. Barret, Z. Basrak, N. Bastid, Mohamed Lotfi Benabderrhmane, R. Čaplar, P. Crochet, P. Dupieux, M. Dželalija, Z. Fodor, A. Gobbi, Y. Grishkin, O. N. Hartmann, K. D. Hildenbrand, J. Kecskemeti, M. KirejczykP. Koczon, M. Korolija, R. Kotte, T. Kress, A. Lebedev, Y. Leifels, X. Lopez, A. Mangiarotti, M. Merschmeyer, W. Neubert, D. Pelte, M. Petrovici, F. Rami, W. Reisdorf, 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, I. Yushmanov, A. Zhilin

Research output: Contribution to journalArticle

Abstract

We present transverse momentum and rapidity spectra of charged pions in central Ru + Ru collisions at 40OA and 1528A MeV. The data exhibit enhanced production at low transverse momenta compared to expectations from a thermal model that includes the decay of Δ(1232) resonances and thermal pions. Modifications of the Δ spectral function and the Coulomb interaction are necessary to describe the detailed shape of the transverse momentum spectra. Within the framework of the thermal model, the freeze-out radii of pions are similar at both beam energies. The isospin quantum molecular dynamics model reproduces the shapes of the transverse momentum and rapidity spectra of pions, but the predicted absolute yields are larger than in the measurements, especially at lower beam energy.

Original languageEnglish (US)
Article number034902
JournalPhysical Review C - Nuclear Physics
Volume71
Issue number3
DOIs
StatePublished - Jan 1 2005

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transverse momentum
pions
collisions
dynamic models
molecular dynamics
radii
energy
decay
interactions

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Hong, B., Kim, Y. J., Herrmann, N., Stockmeier, M. R., Andronic, A., Barret, V., ... Zhilin, A. (2005). Charged pion production in 4496Ru + 4496Ru collisions at 400A and 1528A MeV. Physical Review C - Nuclear Physics, 71(3), [034902]. https://doi.org/10.1103/PhysRevC.71.034902

Charged pion production in 4496Ru + 4496Ru collisions at 400A and 1528A MeV. / Hong, B.; Kim, Y. J.; Herrmann, N.; Stockmeier, M. R.; Andronic, A.; Barret, V.; Basrak, Z.; Bastid, N.; Lotfi Benabderrhmane, Mohamed; Čaplar, R.; Crochet, P.; Dupieux, P.; Dželalija, M.; Fodor, Z.; Gobbi, A.; Grishkin, Y.; Hartmann, O. N.; Hildenbrand, K. D.; Kecskemeti, J.; Kirejczyk, M.; Koczon, P.; Korolija, M.; Kotte, R.; Kress, T.; Lebedev, A.; Leifels, Y.; Lopez, X.; Mangiarotti, A.; Merschmeyer, M.; Neubert, W.; Pelte, D.; Petrovici, M.; Rami, F.; Reisdorf, W.; 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, I.; Zhilin, A.

In: Physical Review C - Nuclear Physics, Vol. 71, No. 3, 034902, 01.01.2005.

Research output: Contribution to journalArticle

Hong, B, Kim, YJ, Herrmann, N, Stockmeier, MR, Andronic, A, Barret, V, Basrak, Z, Bastid, N, Lotfi Benabderrhmane, M, Čaplar, R, Crochet, P, Dupieux, P, Dželalija, M, Fodor, Z, Gobbi, A, Grishkin, Y, Hartmann, ON, Hildenbrand, KD, Kecskemeti, J, Kirejczyk, M, Koczon, P, Korolija, M, Kotte, R, Kress, T, Lebedev, A, Leifels, Y, Lopez, X, Mangiarotti, A, Merschmeyer, M, Neubert, W, Pelte, D, Petrovici, M, Rami, F, Reisdorf, W, 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, I & Zhilin, A 2005, 'Charged pion production in 4496Ru + 4496Ru collisions at 400A and 1528A MeV', Physical Review C - Nuclear Physics, vol. 71, no. 3, 034902. https://doi.org/10.1103/PhysRevC.71.034902
Hong, B. ; Kim, Y. J. ; Herrmann, N. ; Stockmeier, M. R. ; Andronic, A. ; Barret, V. ; Basrak, Z. ; Bastid, N. ; Lotfi Benabderrhmane, Mohamed ; Čaplar, R. ; Crochet, P. ; Dupieux, P. ; Dželalija, M. ; Fodor, Z. ; Gobbi, A. ; Grishkin, Y. ; Hartmann, O. N. ; Hildenbrand, K. D. ; Kecskemeti, J. ; Kirejczyk, M. ; Koczon, P. ; Korolija, M. ; Kotte, R. ; Kress, T. ; Lebedev, A. ; Leifels, Y. ; Lopez, X. ; Mangiarotti, A. ; Merschmeyer, M. ; Neubert, W. ; Pelte, D. ; Petrovici, M. ; Rami, F. ; Reisdorf, W. ; 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, I. ; Zhilin, A. / Charged pion production in 4496Ru + 4496Ru collisions at 400A and 1528A MeV. In: Physical Review C - Nuclear Physics. 2005 ; Vol. 71, No. 3.
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abstract = "We present transverse momentum and rapidity spectra of charged pions in central Ru + Ru collisions at 40OA and 1528A MeV. The data exhibit enhanced production at low transverse momenta compared to expectations from a thermal model that includes the decay of Δ(1232) resonances and thermal pions. Modifications of the Δ spectral function and the Coulomb interaction are necessary to describe the detailed shape of the transverse momentum spectra. Within the framework of the thermal model, the freeze-out radii of pions are similar at both beam energies. The isospin quantum molecular dynamics model reproduces the shapes of the transverse momentum and rapidity spectra of pions, but the predicted absolute yields are larger than in the measurements, especially at lower beam energy.",
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T1 - Charged pion production in 4496Ru + 4496Ru collisions at 400A and 1528A MeV

AU - Hong, B.

AU - Kim, Y. J.

AU - Herrmann, N.

AU - Stockmeier, M. R.

AU - Andronic, A.

AU - Barret, V.

AU - Basrak, Z.

AU - Bastid, N.

AU - Lotfi Benabderrhmane, Mohamed

AU - Čaplar, R.

AU - Crochet, P.

AU - Dupieux, P.

AU - Dželalija, M.

AU - Fodor, Z.

AU - Gobbi, A.

AU - Grishkin, Y.

AU - Hartmann, O. N.

AU - Hildenbrand, K. D.

AU - Kecskemeti, 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 - Mangiarotti, A.

AU - Merschmeyer, M.

AU - Neubert, W.

AU - Pelte, D.

AU - Petrovici, M.

AU - Rami, F.

AU - Reisdorf, W.

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, I.

AU - Zhilin, A.

PY - 2005/1/1

Y1 - 2005/1/1

N2 - We present transverse momentum and rapidity spectra of charged pions in central Ru + Ru collisions at 40OA and 1528A MeV. The data exhibit enhanced production at low transverse momenta compared to expectations from a thermal model that includes the decay of Δ(1232) resonances and thermal pions. Modifications of the Δ spectral function and the Coulomb interaction are necessary to describe the detailed shape of the transverse momentum spectra. Within the framework of the thermal model, the freeze-out radii of pions are similar at both beam energies. The isospin quantum molecular dynamics model reproduces the shapes of the transverse momentum and rapidity spectra of pions, but the predicted absolute yields are larger than in the measurements, especially at lower beam energy.

AB - We present transverse momentum and rapidity spectra of charged pions in central Ru + Ru collisions at 40OA and 1528A MeV. The data exhibit enhanced production at low transverse momenta compared to expectations from a thermal model that includes the decay of Δ(1232) resonances and thermal pions. Modifications of the Δ spectral function and the Coulomb interaction are necessary to describe the detailed shape of the transverse momentum spectra. Within the framework of the thermal model, the freeze-out radii of pions are similar at both beam energies. The isospin quantum molecular dynamics model reproduces the shapes of the transverse momentum and rapidity spectra of pions, but the predicted absolute yields are larger than in the measurements, especially at lower beam energy.

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U2 - 10.1103/PhysRevC.71.034902

DO - 10.1103/PhysRevC.71.034902

M3 - Article

VL - 71

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

SN - 0556-2813

IS - 3

M1 - 034902

ER -