The Most Massive galaxy Clusters (M2C) across cosmic time: link between
  radial total mass distribution and dynamical state
  We study the dynamical state and the integrated total mass profiles of 75
massive (M500 > 5 e+14 M_sun) SZ-selected clusters at 0.08<z< 1.1. The sample
is built from the Planck catalogue, with the addition of 4 SPT clusters at
z>0.9. Using XMM imaging observations, we characterise the dynamical state with
the centroid shift, the concentration, and their combination, M, which
simultaneously probes the core and the large scale gas morphology. Using
spatially-resolved spectroscopy and assuming hydrostatic equilibrium, we derive
the total integrated mass profiles. The mass profile shape is quantified by the
sparsity, the ratio of M500 to M2500, the masses at density contrast 500 and
2500, respectively. We study the correlations between the various parameters
and their dependence on redshift. We confirm that SZ-selected samples, thought
to reflect most closely the underlying cluster population, are dominated by
disturbed and non-cool core objects at all z. There is no significant evolution
or mass dependence of either the cool core fraction or the centroid shift
parameter. The M parameter evolves slightly with z, having a correlation
coefficient of rho= -0.2 $\pm$ 0.1 and a null hypothesis p-value of 0.01. In
the high mass regime considered here, the sparsity evolves minimally with
redshift, increasing by 10% between z<0.2 and z>0.55, an effect significant at
less than 2 sigma. In contrast, the dependence of the sparsity on dynamical
state is much stronger, increasing by a factor of $\sim$60% from the 1/3 most
relaxed to the 1/3 most disturbed objects, an effect significant at more than 3
sigma. This is the first observational evidence that the shape of the
integrated total mass profile in massive clusters is principally governed by
the dynamical state, and is only mildly dependent on redshift. We discuss the
consequences for the comparison between observations and theoretical
predictions.
