Consistency of the Planck CMB data and $\Lambda$CDM cosmology
  We test the consistency between Planck temperature and polarization power
spectra and the concordance model of $\Lambda$ Cold Dark Matter cosmology
($\Lambda$CDM) within the framework of Crossing statistics. We find that Planck
TT best fit $\Lambda$CDM power spectrum is completely consistent with EE power
spectrum data while EE best fit $\Lambda$CDM power spectrum is not consistent
with TT data. However, this does not point to any systematic or model-data
discrepancy since in the Planck EE data, uncertainties are much larger compared
to the TT data. We also investigate the possibility of any deviation from
$\Lambda$CDM model analyzing the Planck 2015 data. Results from TT, TE and EE
data analysis indicate that no deviation is required beyond the flexibility of
the concordance $\Lambda$CDM model. Our analysis thus rules out any strong
evidence for beyond the concordance model in the Planck spectra data. We also
report a mild amplitude difference comparing temperature and polarization data,
where temperature data seems to have slightly lower amplitude than expected
(consistently at all multiples), as we assume both temperature and polarization
data are realizations of the same underlying cosmology.
