Quantifying the global parameter tensions between ACT, SPT and Planck
  The overall cosmological parameter tension between the Atacama Cosmology
Telescope 2020 (ACT) and Planck 2018 data within the concordance cosmological
model is quantified using the suspiciousness statistic to be 2.6$\sigma$.
Between ACT and the South Pole Telescope (SPT) we find a tension of
2.4$\sigma$, and 2.8$\sigma$ between ACT and Planck+SPT combined. While it is
unclear whether the tension is caused by statistical fluctuations, systematic
effects or new physics, caution should be exercised in combining these cosmic
microwave background datasets in the context of the $\Lambda$CDM standard model
of the universe.
