Figure 7.

Energy dependence of the enhancement of the He p (solid, red) and p He (dashed, blue) contributions to the antiproton spectrum, relative to the pp-case, $Z_{\overline{p}}^{ij}(E_{\overline{p}},\alpha )∕Z_{\overline{p}}^{pp}(E_{\overline{p}},\alpha )$ (plotted as a function of $E_{\overline{p}}^{\text{kin}}$), for α = 2.6.