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Centrality dependence of the second Fourier sine coefficient of the (Λ+Λ ̄) polarization along the beam direction in Pb-Pb collisions at √sNN = 5.02 TeV

Figure Information
Scope: PWG
PWG-CF (Flow and Correlations)
Energy
5.02 TeV
System
Pb-Pb
Figure Group
Lambda baryon polarization along beam direction in Pb-Pb collisions at 5.02 TeV
Figure Image
Figure image (.eps)
Dec21_2020_polz_cent.eps
Figure image (.pdf)
Dec21_2020_polz_cent.pdf
Figure Caption

Figure3: (coloronline) Centrality dependence of the second Fourier sine coefficient of the (Λ+Λ ̄) polarization along the beam direction in Pb-Pb collisions at √sNN = 5.02 TeV compared with the RHIC results for Au-Au collisions at √sNN = 200 GeV. The Blast Wave (BW) model calculations for Pb-Pb collisions at √sNN = 2.76 TeV are shown by dashed-dotted line. STAR measurement was performed with alpha_H  = 0.642 whereas the recent ALICE measurement uses  alpha_H = 0.750 (Λ), -0.758 (Λ̄).  So, the STAR results are scaled with (0.642/0.750) for a proper comparison with the ALICE results.

Detail description

Centrality dependence of the second Fourier sine coefficient of the (Λ+Λ ̄) polarization along the beam direction in Pb-Pb collisions at √sNN = 5.02 TeV compared with the RHIC results for Au-Au collisions at √sNN = 200 GeV. The Blast Wave (BW) model calculations for Pb-Pb collisions at √sNN = 2.76 TeV are shown by dashed-dotted line. STAR measurement was performed with alpha_H  = 0.642 whereas the recent ALICE measurement uses  alpha_H = 0.750 (Λ), -0.758 (Λ̄).  So, the STAR results are scaled with (0.642/0.750) for a proper comparison with the ALICE results.