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Measurements of directed, elliptic, and triangular flow in Cu+Au collisions at $$sqrt{s_{NN}}$$=200 GeV

$$sqrt{s_{NN}}$$=200GeVでのCu+Au衝突における1次、2次、3次のフローの測定

Adare, A.*; 長谷川 勝一; 今井 憲一; 永宮 正治; 佐甲 博之; 佐藤 進; 谷田 聖; PHENIX Collaboration*; 他397名*

Adare, A.*; Hasegawa, Shoichi; Imai, Kenichi; Nagamiya, Shoji; Sako, Hiroyuki; Sato, Susumu; Tanida, Kiyoshi; PHENIX Collaboration*; 397 of others*

Measurements of anisotropic flow Fourier coefficients ($$v_n$$) for inclusive charged particles and identified hadrons $$pi^{pm}$$, $$K^{pm}$$, $$p$$, and $$bar{p}$$ produced at midrapidity in Cu+Au collisions at $$sqrt{s_{NN}}$$ = 200 GeV are presented. The data were collected in 2012 by the PHENIX experiment at the Relativistic Heavy-Ion Collider (RHIC). The particle azimuthal distributions with respect to different-order symmetry planes $$Psi_n$$, for $$n=$$1, 2, and 3 are studied as a function of transverse momentum $$p_T$$ over a broad range of collision centralities. Mass ordering, as expected from hydrodynamic flow, is observed for all three harmonics. The charged-particle results are compared with hydrodynamical and transport model calculations. We also compare these Cu+Au results with those in Cu+Cu and Au+Au collisions at the same $$sqrt{s_{NN}}$$ and find that the $$v_2$$ and $$v_3$$, as a function of transverse momentum, follow a common scaling with $$1/(epsilon_n N_{rm part}^{1/3})$$.

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パーセンタイル:13.07

分野:Physics, Nuclear

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