Third harmonic flow of charged particles in Au + Au collisions at √s[subscript NN]=200 GeV

• Main Authors: Betancourt, Michael Joseph (Contributor), Balewski, Jan T. (Contributor), Corliss, Ross (Contributor), Hays-Wehle, James Prewitt (Contributor), Leight, William Axel (Contributor), Redwine, Robert P. (Contributor), Seele, J. (Contributor), Steadman, Stephen G. (Contributor), van Nieuwenhuizen, Gerrit Jan (Contributor)
• Other Authors: Massachusetts Institute of Technology. Department of Physics (Contributor), Massachusetts Institute of Technology. Laboratory for Nuclear Science (Contributor)
• Format: Article
• Language: English
• Published: American Physical Society, 2013-10-09T15:07:11Z.
• Subjects: Article
• Online Access: Get fulltext

We report measurements of the third harmonic coefficient of the azimuthal anisotropy, v[subscript 3], known as triangular flow. The analysis is for charged particles in Au+Au collisions at √s[subscript NN]=200 GeV, based on data from the STAR experiment at the BNL Relativistic Heavy Ion Collider. Two-particle correlations as a function of their pseudorapidity separation are fit with narrow and wide Gaussians. Measurements of triangular flow are extracted from the wide Gaussian, from two-particle cumulants with a pseudorapidity gap, and also from event plane analysis methods with a large pseudorapidity gap between the particles and the event plane. These results are reported as a function of transverse momentum and centrality. A large dependence on the pseudorapidity gap is found. Results are compared with other experiments and model calculations.
Brookhaven National Laboratory
Lawrence Berkeley National Laboratory
United States. Dept. of Energy
National Science Foundation (U.S.)
Alfred P. Sloan Foundation