期刊
PHYSICAL REVIEW C
卷 83, 期 6, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevC.83.064901
关键词
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资金
- Agence Nationale de la Recherche [ANR-08-BLAN-0093-01]
- Cofecub [Uc Ph 113/08, 2007.1.875.43.9]
- FAPESP [09/50180-0, 09/16860-3, 10/51479-6]
- CNPq [305653/2007-5, 301141/2010-0]
- Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP) [09/16860-3] Funding Source: FAPESP
Fluctuations in the initial geometry of a nucleus-nucleus collision have been recently shown to result in a new type of directed flow (v(1)) that, unlike the usual directed flow, is also present at midrapidity. We compute this new v(1) versus transverse momentum and centrality for Au-Au collisions at RHIC using the hydrodynamic code NeXSPheRIO. We find that the event plane of v(1) is correlated with the angle of the initial dipole of the distribution, as predicted, though with a large dispersion. It is uncorrelated with the reaction plane. Our results are in excellent agreement with results inferred from STAR correlation data.
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