The hot matter excited in ultrarelativistic heavy-ion collisions exhibits a sizeable
anisotropy in particle production. We formulate a generalisation of the blast-wave model which is suitable for description of higher
order azimuthal anisotropies in hadron production. The model includes anisotropy in density profile as
well as an anisotropy in the transverse expansion velocity field. These two kinds of
anisotropy influence the single-particle distributions and the correlation radii of two-particle correlation
functions. Particularly we focus on the third-order anisotropy and attention is given to the averaging over
different orientation of the event plane.
|List of tracks||Fluctuation in initial conditions, collective flow and correlations|