Related paper First polarisation measurement of coherently photoproduced J/$ψ$ in ultra-peripheral Pb$-$Pb collisions at $\sqrt{s_{\rm NN}}$ = 5.02 TeV Two-dimensional angular distribution of coherent J/$\psi$ candidates in the helicity frame, after being unfolded in $\varphi$ and corrected for $A \times \epsilon$ in $\cos\theta$. [png] [pdf] [eps]