Neutrino mass constraints in the context of 4-parameter dark energy equation of state and DESI DR2 observations

Gowri S Nair, Amlan Chakraborty, Luca Amendola +1

Cosmological constraints on the total neutrino mass, $\sum m_{\nu }$, are strongly shaped by assumptions about the dark-energy equation of state due to the well-known degeneracy between…