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We study the influence of geometric and dynamical anisotropies on thedevelopment of flow harmonics and, simultaneously, on the second- andthird-order oscillations of femtoscopy radii. The analysis is done within theMonte Carlo event generator HYDJET++, which was extended to dynamicaltriangular deformations. It is shown that the merely geometric anisotropyprovides the results which anticorrelate with the experimental observations ofeither $v_2$ (or $v_3$) or second-order (or third-order) oscillations of thefemtoscopy radii. Decays of resonances significantly increase the emittingareas but do not change the phases of the radii oscillations. In contrast tothe spatial deformations, the dynamical anisotropy alone provides the correctqualitative description of the flow and the femtoscopy observablessimultaneously. However, one needs both types of the anisotropy to matchquantitatively the experimental data.

Dynamical vs geometric anisotropy in relativistic heavy-ion collisions: which one prevails?