Cosmological Analysis: Resolving the Hubble and S8 Tensions via Dynamical Dark Energy and Neutrino Mass

This dataset presents the results of a comprehensive cosmological analysis where the standard model Lambda−CDM is extended with two free parameters: the dark energy equation of state (w) and the sum of neutrino masses (summnu). The purpose of this analysis is to investigate whether this extension can resolve the observed discrepancies between the early universe (CMB) and local measurements of the cosmic expansion rate (H0) and structure growth (S8). 

Key Results:

• H0 = 69.32 ± 0.59 km/s/Mpc

• w = -1.041 ± 0.024

• Σmν < 0.0955 eV (95% CL)