Azimuthal anisotropy in Cu+Au collisions at √sNN = 200 GeV

Adamczyk, Leszek

doi:10.1103/PhysRevC.98.014915

Title: Azimuthal anisotropy in Cu+Au collisions at √s_NN = 200 GeV

Journal Article · 30 July 2018 · Physical Review C

DOI: https://doi.org/10.1103/PhysRevC.98.014915 · OSTI ID:1460829

Adamczyk, Leszek ^[1]

AGH Univ. of Science and Technology, Cracow (Poland). et al.

Here, the azimuthal anisotropic flow of identified and unidentified charged particles has been systematically studied in Cu+Au collisions at √s_NN = 200 GeV for harmonics n = 1–4 in the pseudorapidity range |η| < 1. The directed flow in Cu+Au collisions is compared with the rapidity-odd and, for the first time, the rapidity-even components of charged particle directed flow in Au+Au collisions at √s_NN = 200 GeV. The slope of the directed flow pseudorapidity dependence in Cu+Au collisions is found to be similar to that in Au+Au collisions, with the intercept shifted toward positive pseudorapidity values, i.e., the Cu-going direction. The mean transverse momentum projected onto the spectator plane, < px >, in Cu+Au collision also exhibits approximately linear dependence on pseudorapidity with the intercept at about η ≈ –0.4 (shifted from zero in the Au-going direction), closer to the rapidity of the Cu+Au system center-of-mass. The observed dependencies find natural explanation in a picture of the directed flow originating partly due the “tilted source” and partly due to the rapidity dependent asymmetry in the initial density distribution. Charge-dependence of the hpxi was also observed in Cu+Au collisions, indicating an effect of the initial electric field created by charge difference of the spectator protons in two colliding nuclei. The rapidity-even component of directed flow in Au+Au collisions is close to that in Pb+Pb collisions at √s_NN = 2.76 TeV, indicating a similar magnitude of dipole-like fluctuations in the initial-state density distribution. Higher harmonic flow in Cu+Au collisions exhibits similar trends to those observed in Au+Au and Pb+Pb collisions and is qualitatively reproduced by a viscous hydrodynamic model and a multiphase transport model. For all harmonics with n ≥ 2 we observe an approximate scaling of vn with the number of constituent quarks; this scaling works as well in Cu+Au collisions as it does in Au+Au collisions.

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Research Organization:: Brookhaven National Laboratory (BNL), Upton, NY (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)

Sponsoring Organization:: USDOE; USDOE Office of Science (SC), Nuclear Physics (NP); USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)

Contributing Organization:: STAR Collaboration

Grant/Contract Number:: AC02-05CH11231; SC0012704

OSTI ID:: 1460829

Report Number(s):: BNL--207844-2018-JAAM

Journal Information:: Physical Review C, Journal Name: Physical Review C Vol. 98; ISSN 2469-9985

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Azimuthal anisotropy in Cu$+$Au collisions at $\sqrt{s_{_{NN}}}$ = 200 GeV Collaboration, Star https://doi.org/10.17182/hepdata.103057.v1 The current record is supplemented by this collection	collection	January 2021
"Figure 4ab" of "Azimuthal anisotropy in Cu$+$Au collisions at $\sqrt{s_{_{NN}}}$ = 200 GeV" Collaboration, Star https://doi.org/10.17182/hepdata.103057.v1/t1 The current record is supplemented by this dataset	dataset	January 2021
"Figure 9b" of "Azimuthal anisotropy in Cu$+$Au collisions at $\sqrt{s_{_{NN}}}$ = 200 GeV" Collaboration, Star https://doi.org/10.17182/hepdata.103057.v1/t10 The current record is supplemented by this dataset	dataset	January 2021
"Figure 10.1" of "Azimuthal anisotropy in Cu$+$Au collisions at $\sqrt{s_{_{NN}}}$ = 200 GeV" Collaboration, Star https://doi.org/10.17182/hepdata.103057.v1/t11 The current record is supplemented by this dataset	dataset	January 2021
"Figure 10.2" of "Azimuthal anisotropy in Cu$+$Au collisions at $\sqrt{s_{_{NN}}}$ = 200 GeV" Collaboration, Star https://doi.org/10.17182/hepdata.103057.v1/t12 The current record is supplemented by this dataset	dataset	January 2021
"Figure 10.3" of "Azimuthal anisotropy in Cu$+$Au collisions at $\sqrt{s_{_{NN}}}$ = 200 GeV" Collaboration, Star https://doi.org/10.17182/hepdata.103057.v1/t13 The current record is supplemented by this dataset	dataset	January 2021
"Figure 11" of "Azimuthal anisotropy in Cu$+$Au collisions at $\sqrt{s_{_{NN}}}$ = 200 GeV" Collaboration, Star https://doi.org/10.17182/hepdata.103057.v1/t14 The current record is supplemented by this dataset	dataset	January 2021
"Figure 13.1" of "Azimuthal anisotropy in Cu$+$Au collisions at $\sqrt{s_{_{NN}}}$ = 200 GeV" Collaboration, Star https://doi.org/10.17182/hepdata.103057.v1/t15 The current record is supplemented by this dataset	dataset	January 2021
"Figure 13.2" of "Azimuthal anisotropy in Cu$+$Au collisions at $\sqrt{s_{_{NN}}}$ = 200 GeV" Collaboration, Star https://doi.org/10.17182/hepdata.103057.v1/t16 The current record is supplemented by this dataset	dataset	January 2021
"Figure 13.3" of "Azimuthal anisotropy in Cu$+$Au collisions at $\sqrt{s_{_{NN}}}$ = 200 GeV" Collaboration, Star https://doi.org/10.17182/hepdata.103057.v1/t17 The current record is supplemented by this dataset	dataset	January 2021
"Figure 14.1" of "Azimuthal anisotropy in Cu$+$Au collisions at $\sqrt{s_{_{NN}}}$ = 200 GeV" Collaboration, Star https://doi.org/10.17182/hepdata.103057.v1/t18 The current record is supplemented by this dataset	dataset	January 2021
"Figure 14.2" of "Azimuthal anisotropy in Cu$+$Au collisions at $\sqrt{s_{_{NN}}}$ = 200 GeV" Collaboration, Star https://doi.org/10.17182/hepdata.103057.v1/t19 The current record is supplemented by this dataset	dataset	January 2021
"Figure 4cd" of "Azimuthal anisotropy in Cu$+$Au collisions at $\sqrt{s_{_{NN}}}$ = 200 GeV" Collaboration, Star https://doi.org/10.17182/hepdata.103057.v1/t2 The current record is supplemented by this dataset	dataset	January 2021
"Figure 15" of "Azimuthal anisotropy in Cu$+$Au collisions at $\sqrt{s_{_{NN}}}$ = 200 GeV" Collaboration, Star https://doi.org/10.17182/hepdata.103057.v1/t20 The current record is supplemented by this dataset	dataset	January 2021
"Figure 17.1" of "Azimuthal anisotropy in Cu$+$Au collisions at $\sqrt{s_{_{NN}}}$ = 200 GeV" Collaboration, Star https://doi.org/10.17182/hepdata.103057.v1/t21 The current record is supplemented by this dataset	dataset	January 2021
"Figure 17.2" of "Azimuthal anisotropy in Cu$+$Au collisions at $\sqrt{s_{_{NN}}}$ = 200 GeV" Collaboration, Star https://doi.org/10.17182/hepdata.103057.v1/t22 The current record is supplemented by this dataset	dataset	January 2021
"Figure 17.3" of "Azimuthal anisotropy in Cu$+$Au collisions at $\sqrt{s_{_{NN}}}$ = 200 GeV" Collaboration, Star https://doi.org/10.17182/hepdata.103057.v1/t23 The current record is supplemented by this dataset	dataset	January 2021
"Figure 17.4" of "Azimuthal anisotropy in Cu$+$Au collisions at $\sqrt{s_{_{NN}}}$ = 200 GeV" Collaboration, Star https://doi.org/10.17182/hepdata.103057.v1/t24 The current record is supplemented by this dataset	dataset	January 2021
"Figure 17.5" of "Azimuthal anisotropy in Cu$+$Au collisions at $\sqrt{s_{_{NN}}}$ = 200 GeV" Collaboration, Star https://doi.org/10.17182/hepdata.103057.v1/t25 The current record is supplemented by this dataset	dataset	January 2021
"Figure 18.1" of "Azimuthal anisotropy in Cu$+$Au collisions at $\sqrt{s_{_{NN}}}$ = 200 GeV" Collaboration, Star https://doi.org/10.17182/hepdata.103057.v1/t26 The current record is supplemented by this dataset	dataset	January 2021
"Figure 18.2" of "Azimuthal anisotropy in Cu$+$Au collisions at $\sqrt{s_{_{NN}}}$ = 200 GeV" Collaboration, Star https://doi.org/10.17182/hepdata.103057.v1/t27 The current record is supplemented by this dataset	dataset	January 2021
"Figure 18.3" of "Azimuthal anisotropy in Cu$+$Au collisions at $\sqrt{s_{_{NN}}}$ = 200 GeV" Collaboration, Star https://doi.org/10.17182/hepdata.103057.v1/t28 The current record is supplemented by this dataset	dataset	January 2021
"Figure 18.4" of "Azimuthal anisotropy in Cu$+$Au collisions at $\sqrt{s_{_{NN}}}$ = 200 GeV" Collaboration, Star https://doi.org/10.17182/hepdata.103057.v1/t29 The current record is supplemented by this dataset	dataset	January 2021
"Figure 5" of "Azimuthal anisotropy in Cu$+$Au collisions at $\sqrt{s_{_{NN}}}$ = 200 GeV" Collaboration, Star https://doi.org/10.17182/hepdata.103057.v1/t3 The current record is supplemented by this dataset	dataset	January 2021
"Figure 18.5" of "Azimuthal anisotropy in Cu$+$Au collisions at $\sqrt{s_{_{NN}}}$ = 200 GeV" Collaboration, Star https://doi.org/10.17182/hepdata.103057.v1/t30 The current record is supplemented by this dataset	dataset	January 2021
"Figure 18.6" of "Azimuthal anisotropy in Cu$+$Au collisions at $\sqrt{s_{_{NN}}}$ = 200 GeV" Collaboration, Star https://doi.org/10.17182/hepdata.103057.v1/t31 The current record is supplemented by this dataset	dataset	January 2021
"Figure 18.7" of "Azimuthal anisotropy in Cu$+$Au collisions at $\sqrt{s_{_{NN}}}$ = 200 GeV" Collaboration, Star https://doi.org/10.17182/hepdata.103057.v1/t32 The current record is supplemented by this dataset	dataset	January 2021
"Figure 18.8" of "Azimuthal anisotropy in Cu$+$Au collisions at $\sqrt{s_{_{NN}}}$ = 200 GeV" Collaboration, Star https://doi.org/10.17182/hepdata.103057.v1/t33 The current record is supplemented by this dataset	dataset	January 2021
"Figure 6ab" of "Azimuthal anisotropy in Cu$+$Au collisions at $\sqrt{s_{_{NN}}}$ = 200 GeV" Collaboration, Star https://doi.org/10.17182/hepdata.103057.v1/t4 The current record is supplemented by this dataset	dataset	January 2021
"Figure 6cd" of "Azimuthal anisotropy in Cu$+$Au collisions at $\sqrt{s_{_{NN}}}$ = 200 GeV" Collaboration, Star https://doi.org/10.17182/hepdata.103057.v1/t5 The current record is supplemented by this dataset	dataset	January 2021
"Figure 7" of "Azimuthal anisotropy in Cu$+$Au collisions at $\sqrt{s_{_{NN}}}$ = 200 GeV" Collaboration, Star https://doi.org/10.17182/hepdata.103057.v1/t6 The current record is supplemented by this dataset	dataset	January 2021
"Figure 8" of "Azimuthal anisotropy in Cu$+$Au collisions at $\sqrt{s_{_{NN}}}$ = 200 GeV" Collaboration, Star https://doi.org/10.17182/hepdata.103057.v1/t7 The current record is supplemented by this dataset	dataset	January 2021
"Figure 9a.1" of "Azimuthal anisotropy in Cu$+$Au collisions at $\sqrt{s_{_{NN}}}$ = 200 GeV" Collaboration, Star https://doi.org/10.17182/hepdata.103057.v1/t8 The current record is supplemented by this dataset	dataset	January 2021
"Figure 9a.2" of "Azimuthal anisotropy in Cu$+$Au collisions at $\sqrt{s_{_{NN}}}$ = 200 GeV" Collaboration, Star https://doi.org/10.17182/hepdata.103057.v1/t9 The current record is supplemented by this dataset	dataset	January 2021

Title: Azimuthal anisotropy in Cu+Au collisions at √sNN = 200 GeV

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