NUK - logo
E-viri
Recenzirano Odprti dostop
  • Isolation of flow and nonfl...
    Adkins, J.K.; Agakishiev, G.; Anson, C.D.; Aschenauer, E.C.; Bellwied, R.; Bhasin, A.; Bielcik, J.; Bielcikova, J.; Bordyuzhin, I.G.; Bouchet, J.; Brandin, A.V.; Brovko, S.G.; Caines, H.; Campbell, J.M.; Cebra, D.; Cervantes, M.C.; Chen, L.; Chikanian, A.; Codrington, M.J.M.; di Ruzza, B.; Ding, F.; Djawotho, P.; Drachenberg, J.L.; Dunlop, J.C.; Engelage, J.; Eppley, G.; Fatemi, R.; Fazio, S.; Fedorisin, J.; Filip, P.; Fisyak, Y.; Flores, C.E.; Gagliardi, C.A.; Geurts, F.; Girard, M.; Grosnick, D.; Gunarathne, D.S.; Gupta, S.; Haque, R.; Hoffmann, G.W.; Huck, P.; Kang, K.; Kauder, K.; Ke, H.W.; Keane, D.; Kesich, A.; Kikola, D.P.; Kotchenda, L.; Lednicky, R.; Li, X.; Li, Y.; Ljubicic, T.; Lomnitz, M.; Masui, H.; Mohanty, B.; Mondal, M.M.; Nigmatkulov, G.; Nurushev, S.B.; Pawlak, T.; Pei, H.; Planinic, M.; Pruthi, N.K.; Quintero, A.; Ramachandran, S.; Ray, R.L.; Riley, C.K.; Ritter, H.G.; Romero, J.L.; Sahoo, N.R.; Sarkar, A.; Scharenberg, R.P.; Schmidke, W.B.; Shen, W.Q.; Shou, Q.Y.; Simko, M.; Sorensen, P.; Stringfellow, B.; Sun, X.; Sun, Y.; Svirida, D.N.; Thomas, J.H.; Trentalange, S.; Tsai, O.D.; Ullrich, T.; Underwood, D.G.; Vandenbroucke, M.; Varma, R.; Wada, M.; Wang, F.; Wang, J.S.; Wang, Y.; Wissink, S.W.; Wu, Y.F.; Xu, J.; Yan, W.; Yoo, I-K.; Yu, N.; Zhang, J.B.; Zhao, F.; Zhao, J.

    Physics letters. B, 05/2015, Letnik: 745, Številka: C
    Journal Article

    A data-driven method was applied to Au+Au collisions at sNN=200 GeV made with the STAR detector at RHIC to isolate pseudorapidity distance Δη-dependent and Δη-independent correlations by using two- and four-particle azimuthal cumulant measurements. We identified a Δη-independent component of the correlation, which is dominated by anisotropic flow and flow fluctuations. It was also found to be independent of η within the measured range of pseudorapidity |η|<1. In 20–30% central Au+Au collisions, the relative flow fluctuation was found to be 34%±2%(stat.)±3%(sys.) for particles with transverse momentum pT less than 2 GeV/c. The Δη-dependent part, attributed to nonflow correlations, is found to be 5%±2%(sys.) relative to the flow of the measured second harmonic cumulant at |Δη|>0.7.