Influence of initial fluctuations on geometry measures in relativistic U+U and Cu+Au collisions

In the framework of the Glauber approach we investigate the influence of the initial fluctuations on various measures of the initial-state geometry in ⁶³Cu+¹⁹⁷Au and ²³⁸U+²³⁸U relativistic ion collisions. Comparing variants of the Glauber model (the wounded-nucleon model, the mixed model, and the hot-spot model) we indicate sensitivity of certain observables, in particular for the azimuthal eccentricity parameters as well as for the correlation of directions of the principal axes associated with the Fourier components. The effects of the nuclear deformation for the initial geometry are investigated. We apply glissando in our analysis.