Speaker
Prof.
Levon Pogosian
(Simon Fraser University)
Description
The Hubble tension is relieved if the sound horizon at decoupling, r, is reduced. This can happen as a result of the enhanced recombination induced by primordial magnetic fields or caused by more exotic new physics. However, when trying to bring the H0 value measured from CMB into a complete agreement with SH0ES by reducing r alone, one runs into a disagreement with either the BAO or the weak lensing data.
Author
Prof.
Levon Pogosian
(Simon Fraser University)
