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Multiparticle azimuthal correlations for extracting event-by-event elliptic and triangular flow in Au + Au collisions at sNN =200 GeV

  • Author(s): Adare, A
  • Aidala, C
  • Ajitanand, NN
  • Akiba, Y
  • Alfred, M
  • Apadula, N
  • Asano, H
  • Azmoun, B
  • Babintsev, V
  • Bagoly, A
  • Bai, M
  • Bandara, NS
  • Bannier, B
  • Barish, KN
  • Bathe, S
  • Bazilevsky, A
  • Beaumier, M
  • Beckman, S
  • Belmont, R
  • Berdnikov, A
  • Berdnikov, Y
  • Blau, DS
  • Boer, M
  • Bok, JS
  • Boyle, K
  • Brooks, ML
  • Bryslawskyj, J
  • Bumazhnov, V
  • Campbell, S
  • Canoa Roman, V
  • Chen, CH
  • Chi, CY
  • Chiu, M
  • Choi, IJ
  • Choi, JB
  • Chujo, T
  • Citron, Z
  • Connors, M
  • Csanád, M
  • Csörgo, T
  • Danley, TW
  • Datta, A
  • Daugherity, MS
  • David, G
  • Deblasio, K
  • Dehmelt, K
  • Denisov, A
  • Deshpande, A
  • Desmond, EJ
  • Dion, A
  • Diss, PB
  • Do, JH
  • Drees, A
  • Drees, KA
  • Durham, JM
  • Durum, A
  • Enokizono, A
  • Esumi, S
  • Fadem, B
  • Fan, W
  • Feege, N
  • Fields, DE
  • Finger, M
  • Finger, M
  • Fokin, SL
  • Frantz, JE
  • Franz, A
  • Frawley, AD
  • Gal, C
  • Gallus, P
  • Garg, P
  • Ge, H
  • Giordano, F
  • Glenn, A
  • Goto, Y
  • Grau, N
  • Greene, SV
  • Grosse Perdekamp, M
  • Gunji, T
  • Hachiya, T
  • Haggerty, JS
  • Hahn, KI
  • Hamagaki, H
  • Hamilton, HF
  • Han, SY
  • Hanks, J
  • Hasegawa, S
  • Haseler, TOS
  • Hashimoto, K
  • He, X
  • Hemmick, TK
  • Hill, JC
  • Hill, K
  • Hodges, A
  • Hollis, RS
  • Homma, K
  • Hong, B
  • Hoshino, T
  • Hotvedt, N
  • Huang, J
  • et al.
Abstract

© 2019 American Physical Society. We present measurements of elliptic and triangular azimuthal anisotropy of charged particles detected at forward rapidity 1<|η|<3 in Au + Au collisions at sNN=200 GeV, as a function of centrality. The multiparticle cumulant technique is used to obtain the elliptic flow coefficients v2{2},v2{4},v2{6}, and v2{8}, and triangular flow coefficients v3{2} and v3{4}. Using the small-variance limit, we estimate the mean and variance of the event-by-event v2 distribution from v2{2} and v2{4}. In a complementary analysis, we also use a folding procedure to study the distributions of v2 and v3 directly, extracting both the mean and variance. Implications for initial geometrical fluctuations and their translation into the final-state momentum distributions are discussed.

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