Measurements for the expansion rate of the universe disagree. Indeed, local measurements suggest a higher value of the Hubble constant than those performed through the cosmic microwave background. This fact led to a very interesting debate within the scientific community. The paper is not devoted to give solutions to the problem of ``Hubble tension". The aim of this paper is, on the contrary, to deduce the $Omega _{0m}h^{2}$ cosmological parameter from a theoretical point of view, using only two experimental data: the temperature of CMB today and the temperature of photons near the decoupling time.
A determination of the $Omega_{0m} h^2$ cosmological parameter without tension
Benedetto Elmo;Feoli Antonio;Iannella Antonella Lucia
2021-01-01
Abstract
Measurements for the expansion rate of the universe disagree. Indeed, local measurements suggest a higher value of the Hubble constant than those performed through the cosmic microwave background. This fact led to a very interesting debate within the scientific community. The paper is not devoted to give solutions to the problem of ``Hubble tension". The aim of this paper is, on the contrary, to deduce the $Omega _{0m}h^{2}$ cosmological parameter from a theoretical point of view, using only two experimental data: the temperature of CMB today and the temperature of photons near the decoupling time.File in questo prodotto:
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