Key points are not available for this paper at this time.
Abstract The Hubble tension refers to the significant discrepancy in the Hubble constant H 0 obtained from two different measurement methods in cosmology which has persisted for decades. To theoretically explore potential solutions to this problem, this paper examines a model within the framework of Einstein–Cartan theory, where torsion is introduced with spin as the corresponding entity, allowing for a linear assumption between H and ϕ . By employing the Markov Chain Monte Carlo algorithm and utilizing Cosmic Chronometers data, we impose parameter constraints on various parameters in the Friedmann equations, particularly focusing on the curvature density parameter Ω k , to assess whether the model remains stable under this assumption and whether the estimated parameters align more closely with either of the observational results. In conclusion, we find that the parameter constraints in the model incorporating torsion ( H 0 = 67 . 6 − 2.7 + 2.1 km s − 1 Mpc − 1 , obtained under the Big Bang Nucleosynthesis constraint with Ω k = 0; H 0 = 66 . 2 − 2.9 + 4.4 km s − 1 Mpc − 1 , obtained under the same constraint but set Ω k as a free variable; H 0 = 68 . 8 − 4.2 + 2.9 km s − 1 Mpc − 1 , obtained under the Planck constraint) are more consistent with the value derived from CMB data, favoring a lower H 0 value.
Wu et al. (Mon,) studied this question.