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Is there concordance within the concordance $\Lambda$CDM model? · Around

2015

Is there concordance within the concordance $\Lambda$CDM model?

Raveri, Marco

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We use a complete and rigorous statistical indicator to measure the level of concordance between cosmological data sets, without relying on the inspection of the marginal posterior distribution of some selected parameters.

We apply this test to state of the art cosmological data sets, to assess their agreement within the $\Lambda$CDM model.
We find that there is a good level of concordance between all the experiments with one noticeable exception.
There is substantial evidence of tension between the CMB, temperature and polarization, measurements of the Planck satellite and the data from the CFHTLenS weak lensing survey even when applying ultra conservative cuts.

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