Figure 1

Energy dependence of in-medium cross sections ${\sigma }_{\mathrm{np}}^{*(2)}$ and ${\sigma }_{\mathrm{nn},\mathrm{pp}}^{*(2)}$, in panels (a) and (b), and of the suppression parameters ${\eta }_{\mathrm{np}}^{(2)}$ and ${\eta }_{\mathrm{nn},\mathrm{pp}}^{(2)}$, in panels (c) and (d), at selected densities. The cross sections have been obtained within the CTPGF approach with QHD-II effective Lagrangian.Reuse & Permissions

Figure 2

Flow excitation functions in Au+Au collisions. The top panels display midrapidity elliptic flow. The bottom panels display maximal scaled directed flow. The data are represented by solid symbols and calculations by open symbols. Lines generally merely guide the eye, except for the dashed lines in the bottom panels. In these cases, the dashed lines illustrate the change in the directed flow data after applying the correction for reaction-plane fluctuation. The left panels in the figure illustrate the sensitivity of calculations to the employed mean field. The right panels illustrate the sensitivity of calculations to in-medium cross sections.Reuse & Permissions

Figure 3

Comparison of characteristics of central colliding systems in the longitudinal and transverse rapidities. Panels (a) and (b) display the calculated rapidity distributions of particles from central ($b/b_{\max }<0.15$) $400A$ MeV Au+Au collisions and illustrate, respectively, the sensitivity of calculations to the mean field and to the cross sections. The rapidities are normalized to the beam c.m. rapidity. Panels (c) and (d) display the calculated and measured dependencies of the variance ratio vartl, respectively, on energy for the Au+Au collisions and on net system charge at collision energy $400A$ MeV. The data are from FOPI Collaboration [21]. The calculations have been done for the SkP mean field combined with either ${\sigma }^{*(1)}$ or ${\sigma }^{*(3)}$ cross sections.Reuse & Permissions

Figure 4

Correlation between vartl and flow observables: $p_{x\mathrm{dir}}^{(0)}$ in the panel (a) and $v_2$ in (b). Both the data [21, 36] and calculations are represented.Reuse & Permissions