![Figure 4](fig_roberto.png)
Figure 4: Cross section for scattering of two scalar particles by graviton exchange with and without
running Planck mass, in units of the low-energy Planck mass
. The dot-dashed (purple) line
depicts the case without asymptotic safety; the continuous (blue) and dashed (grey) line take into
account the running of the Planck mass, for two different values of the fixed point,
and
respectively. Figure from [261]; reproduced with permission from IOP.
![√ --- 1∕ G0](article629x.gif)
![∘ --- 1∕ &tidle;G∗ = 0.024](article630x.gif)
![0.1](article631x.gif)