Azimuthal anisotropy of pi(0) and eta mesons in Au plus Au collisions at root s(NN)=200 GeV
- Adare, A.
- Afanasiev, S.
- Aidala, C.
- Ajitanand, N. N.
- Akiba, Y.
- Al-Bataineh, H.
- Alexander, J.
- Aoki, K.
- Aramaki, Y.
- Atomssa, E. T.
- Averbeck, R.
- Awes, T. C.
- Azmoun, B.
- Babintsev, V.
- Bai, M.
- Baksay, G.
- Baksay, L.
- Barish, K. N.
- Bassalleck, B.
- Basye, A. T.
- Bathe, S.
- Baublis, V.
- Baumann, C.
- Bazilevsky, A.
- Belikov, S.
- Belmont, R.
- Bennett, R.
- Berdnikov, A.
- Berdnikov, Y.
- Bickley, A. A.
- Bok, J. S.
- Boyle, K.
- Brooks, M. L.
- Buesching, H.
- Bumazhnov, V.
- Bunce, G.
- Butsyk, S.
- Camacho, C. M.
- Campbell, S.
- Chen, C.H.
- Chi, C. Y.
DOIAbstract
The azimuthal anisotropy coefficients v2 and v4 of p 0 and. mesons are measured in Au + Au collisions at root s(NN) = 200 GeV as a function of transverse momentum p(T) (1-14 GeV/c) and centrality. The extracted v(2) coefficients are found to be consistent between the two meson species over the measured p(T) range. The ratio of v(4)/v(2)(2) for pi(0) mesons is found to be independent of p(T) for 1- 9 GeV/c, implying a lack of sensitivity of the ratio to the change of underlying physics with p(T). Furthermore, the ratio of v(4)/v(2)(2) is systematically larger in central collisions, which may reflect the combined effects of fluctuations in the initial collision geometry and finite viscosity in the evolving medium.Physics, NuclearSCI(E)0ARTICL...
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