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Chinese Physics C> 2017, Vol. 41> Issue(7) : 074001 DOI: 10.1088/1674-1137/41/7/074001

Sub-leading flow modes in PbPb collisions at sNN = 2.76 TeV from the HYDJET++ model

  • 1.

      University of Belgrade and Institute of physics, P.O. Box 68, 11081 Belgrade, Serbia

  • 2.

      University of Belgrade and Vinca Institute of Nuclear Sciences, P.O. Box 522, 11001 Belgrade, Serbia

  • 3.

     University of Belgrade and Vinca Institute of Nuclear Sciences, P.O. Box 522, 11001 Belgrade, Serbia

  • 4.

     University of Oslo, Department of Physics, Oslo, Norway

  • Recent LHC results on the appearance of sub-leading flow modes in PbPb collisions at 2.76 TeV, related to initial-state fluctuations, are analyzed and interpreted within the HYDJET++ model. Using the newly introduced Principal Component Analysis (PCA) method applied to two-particle azimuthal correlations extracted from the model calculations, the leading and sub-leading flow modes are studied as a function of the transverse momentum (pT) over a wide centrality range. The leading modes of the elliptic (v2(1)) and triangular (v3(1)) flow calculated with the HYDJET++ model reproduce rather well the v2{2} and v3{2} coefficients measured experimentally using the two-particle correlations. Within the pT ≤ 3 GeV/c range, where hydrodynamics dominates, the sub-leading flow effects are greatest at the highest pT of around 3 GeV/c. The sub-leading elliptic flow mode (v2(2)), which corresponds to the n = 2 harmonic, has a small non-zero value and slowly increases from central to peripheral collisions, while the sub-leading triangular flow mode (v3(2)), which corresponds to the n = 3 harmonic, is even smaller and does not depend on centrality. For n = 2, the relative magnitude of the effect measured with respect to the leading flow mode shows a shallow minimum for semi-central collisions and increases for very central and for peripheral collisions. For the n = 3 case, there is no centrality dependence. The sub-leading flow mode results obtained from the HYDJET++ model are in rather good agreement with the experimental measurements of the CMS Collaboration.
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  • References

    [1] J.-Y. Ollitrault, Phys. Rev. D, 48: 1132-1139 (1993)
    [2] S. Voloshin and Y. Zhang, Z. Phys. C, 70: 665-672 (1996)
    [3] A. M. Poskanzer and S. A. Voloshin, Phys. Rev. C, 58: 1671-1678 (1998)
    [4] B. Alver and G. Roland, Phys. Rev. C, 81: 054905-054913 (2010)
    [5] B.B. Back et al (PHOBOS Collaboration), Phys. Rev. Lett., 89: 222301 (2002)
    [6] K.H. Adams et al (STAR Collaboration), Phys. Rev. Lett., 86: 402-407 (2001)
    [7] K. Adcox et al (PHENIX Collaboration), Phys. Rev. Lett., 89: 212301 (2002)
    [8] K. Aamodt et al (ALICE Collaboration), Phys. Rev. Lett., 105: 252302 (2010)
    [9] K. Aamodt et al (ALICE Collaboration), Phys. Rev. Lett., 107: 032301 (2011)
    [10] B.B. Abelev et al (ALICE Collaboration), JHEP, 1506: 190-271 (2015)
    [11] J. Adam et al (ALICE Collaboration), Phys. Rev. Lett., 116: 132302 (2016)
    [12] G. Aad et al (ATLAS Collaboration), Phys. Lett. B, 707: 330-348 (2012)
    [13] G. Aad et al (ATLAS Collaboration), Phys. Rev. C, 86: 014907-014954 (2012)
    [14] G. Aad et al (ATLAS Collaboration), JHEP, 11: 183-240 (2013)
    [15] S. Chatrchyan et al (CMS Collaboration), Eur. Phys. J. C, 72: 2012 (2012)
    [16] S. Chatrchyan et al (CMS Collaboration), Phys. Rev. C, 87: 014902-014936 (2013)
    [17] S. Chatrchyan et al (CMS Collaboration), Phys. Rev. C, 89: 044906-044937 (2014)
    [18] S. Chatrchyan et al (CMS Collaboration), JHEP, 02: 088-0126 (2014)
    [19] V. Khachatryan et al (CMS Collaboration), Phys. Rev. C, 92: 034911-034937 (2015)
    [20] S. Wang et al, Phys. Rev. C, 44: 1091-1095 (1991)
    [21] F. G. Gardim, F. Grassi, M. Luzum, and J.-Y. Ollitrault, Phys. Rev. C, 87: 031901-031906 (2013)
    [22] U. Heinz, Z. Qiu, and C. Shen, Phys. Rev. C, 87: 034913-034922 (2013)
    [23] Y. Zhou, Nucl. Phys. A, 931: 949-953 (2014)
    [24] R. Bhalerao, J.-I. Ollitrault, S. Pal, and D. Teaney, Phys. Rev. Lett., 114: 152301-152306 (2015)
    [25] A. Mazeliauskas and D. Teaney, Phys. Rev. C, 91: 044902-044912 (2015)
    [26] I. P. Lokhtin, L.V. Malinina, S. V. Petrushanko, A. M. Snigirev, I. Arsene, and K. Tywoniuk, Comput. Phys. Commun., 180: 779-799 (2009)
    [27] T. Sjostrand, S. Mrenna, and P. Skands, JHEP, 0605: 026-0602 (2006)
    [28] I. P. Lokhtin and A. M. Snigirev, Eur. Phys. J. C, 45: 211-217 (2006)
    [29] A. Mazeliauskas and D. Teaney, Phys. Rev. C, 93: 024913-024928 (2016)
    [30] J. Milosevic et al (CMS Collaboration), Nucl. Phys. A, 956: 308-311 (2016)
    [31] S. Chatrchyan et al (CMS Collaboration), Phys. Lett. B, 724: 213-240 (2013)
    [32] K. Aamodt et al (ALICE Collaboration), Phys. Lett. B, 708: 249-264 (2012)
    [33] L. V. Bravina, E. S. Fotina, V. L. Korotkikh, I. P. Lokhtin, L. V. Malinina,E. N. Nazarova, S. V. Petrushanko, A. M. Snigirev, and E. E. Zabrodin, Eur. Phys. J. C, 75, 588-598 (2015)

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P. Cirkovic, D. Devetak, M. Dordevic, J. Milosevic and M. Stojanovic. Sub-leading flow modes in PbPb collisions at sNN = 2.76 TeV from the HYDJET++ model[J]. Chinese Physics C, 2017, 41(7): 074001. doi: 10.1088/1674-1137/41/7/074001
P. Cirkovic, D. Devetak, M. Dordevic, J. Milosevic and M. Stojanovic. Sub-leading flow modes in PbPb collisions at sNN = 2.76 TeV from the HYDJET++ model[J]. Chinese Physics C, 2017, 41(7): 074001.  doi: 10.1088/1674-1137/41/7/074001 shu
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Received: 2017-02-13
Revised: 2017-03-22
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    Supported by Ministry of Education, Science and Technological Development of the Republic of Serbia (171019)

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Sub-leading flow modes in PbPb collisions at sNN = 2.76 TeV from the HYDJET++ model

    Corresponding author: J. Milosevic, Jovan.Milosevic@cern.ch
  • 1.  University of Belgrade and Institute of physics, P.O. Box 68, 11081 Belgrade, Serbia
  • 2.  University of Belgrade and Vinca Institute of Nuclear Sciences, P.O. Box 522, 11001 Belgrade, Serbia
  • 3. University of Belgrade and Vinca Institute of Nuclear Sciences, P.O. Box 522, 11001 Belgrade, Serbia
  • 4. University of Oslo, Department of Physics, Oslo, Norway
  • Received Date: 2017-02-13
  • Accepted Date: 2017-03-22
  • Available Online: 2017-07-05
Fund Project:  Supported by Ministry of Education, Science and Technological Development of the Republic of Serbia (171019)

Abstract: Recent LHC results on the appearance of sub-leading flow modes in PbPb collisions at 2.76 TeV, related to initial-state fluctuations, are analyzed and interpreted within the HYDJET++ model. Using the newly introduced Principal Component Analysis (PCA) method applied to two-particle azimuthal correlations extracted from the model calculations, the leading and sub-leading flow modes are studied as a function of the transverse momentum (pT) over a wide centrality range. The leading modes of the elliptic (v2(1)) and triangular (v3(1)) flow calculated with the HYDJET++ model reproduce rather well the v2{2} and v3{2} coefficients measured experimentally using the two-particle correlations. Within the pT ≤ 3 GeV/c range, where hydrodynamics dominates, the sub-leading flow effects are greatest at the highest pT of around 3 GeV/c. The sub-leading elliptic flow mode (v2(2)), which corresponds to the n = 2 harmonic, has a small non-zero value and slowly increases from central to peripheral collisions, while the sub-leading triangular flow mode (v3(2)), which corresponds to the n = 3 harmonic, is even smaller and does not depend on centrality. For n = 2, the relative magnitude of the effect measured with respect to the leading flow mode shows a shallow minimum for semi-central collisions and increases for very central and for peripheral collisions. For the n = 3 case, there is no centrality dependence. The sub-leading flow mode results obtained from the HYDJET++ model are in rather good agreement with the experimental measurements of the CMS Collaboration.

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