CMB lensing in “u$Lambda$CDM in the light of $H_0$ tension. (arXiv:2012.14377v1 [astro-ph.CO])
<a href="http://arxiv.org/find/astro-ph/1/au:+Moshafi_H/0/1/0/all/0/1">Hossein Moshafi</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Baghram_S/0/1/0/all/0/1">Shant Baghram</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Khosravi_N/0/1/0/all/0/1">Nima Khosravi</a>
The observed discrepancy of the Hubble parameter measurements in the local
universe with the 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 “u$Lambda$CDM as a
probable solution for $H_0$ tension for CMB lensing. We show that this model
relaxes the CMB lensing tension and $H_0$ tension simultaneously. Accordingly,
“u$Lambda$CDM having the same amount of free parameters as $Lambda$CDM with
lensing amplitude $A_L$ added, has a better fit with $Delta chi=-3.3$
The observed discrepancy of the Hubble parameter measurements in the local
universe with the 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 “u$Lambda$CDM as a
probable solution for $H_0$ tension for CMB lensing. We show that this model
relaxes the CMB lensing tension and $H_0$ tension simultaneously. Accordingly,
“u$Lambda$CDM having the same amount of free parameters as $Lambda$CDM with
lensing amplitude $A_L$ added, has a better fit with $Delta chi=-3.3$
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