“School of Astronomy”
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| Paper IPM / Astronomy / 16830 |
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The observed discrepancy of the Hubble parameter measurements in the local universe with the cosmic microwave background (CMB) data may indicate a new physics. It is vital to test the alternative models that reconcile the Hubble tension with other cosmological observations in this direction. The CMB lensing is a crucial observation that relates the early universe perturbations to the matter's late-time distribution. In this work, we study the prediction of the üÃ?CDM as a solution for H0 tension for CMB lensing and the low- and high-â??'s temperature (TT) power spectrum internal inconsistency. We show that this model relaxes the low- and high-â??'s TT mild inconsistency and the CMB lensing tensions simultaneously. Accordingly, üÃ?CDM having the same number of free parameters as Ã?CDM with lensing amplitude AL added, has a better fit with Ã?Ã?2=â??3.3
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