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; M. L. Benabderrahmane; R. Čaplar; P. Crochet; P. Dupieux; M. Dželalija; Z. Fodor; A. Gobbi; Y. Grishkin; O. N. Hartmann; K. D. Hildenbrand; J. Kecskemeti; M. Kirejczyk; P. 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

doi:10.1103/PhysRevC.71.034902

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, M. L. Benabderrahmane, 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

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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.

Original language	English
Article number	034902
Journal	Physical Review C - Nuclear Physics
Volume	71
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevC.71.034902
Publication status	Published - 2005 Mar

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1103/PhysRevC.71.034902

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Hong, B., Kim, Y. J., Herrmann, N., Stockmeier, M. R., Andronic, A., Barret, V., Basrak, Z., Bastid, N., Benabderrahmane, M. L., Čaplar, R., Crochet, P., Dupieux, P., Dželalija, M., Fodor, Z., Gobbi, A., Grishkin, Y., Hartmann, O. N., Hildenbrand, K. D., Kecskemeti, J., ... Zhilin, A. (2005). Charged pion production in ₄₄⁹⁶Ru + ₄₄⁹⁶Ru collisions at 400A and 1528A MeV. Physical Review C - Nuclear Physics, 71(3), Article 034902. https://doi.org/10.1103/PhysRevC.71.034902

Hong, B, Kim, YJ, Herrmann, N, Stockmeier, MR, Andronic, A, Barret, V, Basrak, Z, Bastid, N, Benabderrahmane, ML, 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

@article{136d2b0a7b264ea789e645a78e38f8fd,

title = "Charged pion production in 4496Ru + 4496Ru collisions at 400A and 1528A MeV",

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.",

author = "B. Hong and Kim, {Y. J.} and N. Herrmann and Stockmeier, {M. R.} and A. Andronic and V. Barret and Z. Basrak and N. Bastid and Benabderrahmane, {M. L.} and R. {\v C}aplar and P. Crochet and P. Dupieux and M. D{\v z}elalija and Z. Fodor and A. Gobbi and Y. Grishkin and Hartmann, {O. N.} and Hildenbrand, {K. D.} and J. Kecskemeti 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 A. Mangiarotti and M. Merschmeyer and W. Neubert and D. Pelte and M. Petrovici and F. Rami and W. Reisdorf 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 G. Stoicea and Z. Tyminski and P. Wagner and K. Wi{\'s}niewski and D. Wohlfarth and Xiao, {Z. G.} and I. Yushmanov and A. Zhilin",

year = "2005",

month = mar,

doi = "10.1103/PhysRevC.71.034902",

language = "English",

volume = "71",

journal = "Physical Review C - Nuclear Physics",

issn = "0556-2813",

publisher = "American Physical Society",

number = "3",

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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 - Benabderrahmane, M. L.

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 - 2005/3

Y1 - 2005/3

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.

UR - http://www.scopus.com/inward/record.url?scp=18244383274&partnerID=8YFLogxK

U2 - 10.1103/PhysRevC.71.034902

DO - 10.1103/PhysRevC.71.034902

M3 - Article

AN - SCOPUS:18244383274

SN - 0556-2813

VL - 71

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

IS - 3

M1 - 034902

ER -

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

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