Fig. 6.

Position (a $x_{\mathcal{L}}$, c $y_{\mathcal{L}}$, e $z_{\mathcal{L}}$) and size (b ${\mathit{\sigma }}_{x\mathcal{L}}$, d ${\mathit{\sigma }}_{y\mathcal{L}}$, f ${\mathit{\sigma }}_{z\mathcal{L}}$) of the luminous region in ATLAS during a typical fill at $\sqrt{s}=8$ TeV. The transverse sizes are corrected for the transverse vertex resolution