Triangular flow of charged particles in heavy ion collisions  from the STAR experiment at RHIC, Y. Pandit, Kent State University, USA − The study of azimuthal anisotropy, characterized by Fourier coefficients, is widely recognized as an important tool to probe the hot, dense matter created in heavy ion collisions.  The third harmonic flow, v3, also called triangular flow, can shed light on the initial geometry and its fluctuations, and on the hydrodynamic expansion of the medium.

 

We present measurements of triangular flow for charged particles from Au + Au collisions at sqrt(sNN) = 200 GeV recorded with the STAR detector at RHIC. Triangular flow as a function of centrality and transverse momentum are reported using various methods, including a study of the signal for particle pairs as a function of their pseudorapidity separation; analyses of this type can help distinguish among different sources of non flow correlations.  Results are also compared with available hydrodynamical and transport models.