299 citations · 488 across the 26 of their papers we have counts for
18 papers · 1 filter
Running Hubble Constant with the Redshift as a Marker of Evolutionary Dark Energy
Nakia Carlevaro, Giovanni Montani, Maria Giovanna Dainotti
We discuss the interpretation of an observed running Hubble constant with the redshift, in terms of the possible underlying physical scenario. Assuming, like in the CDM model, t…
Modifying CDM dynamics via out-of-equilibrium axions: reconciling SH0ES and DESI values
Giovanni Montani, Luis A. Escamilla, Nakia Carlevaro +1
We investigate late-Universe dynamics in which the dark matter component is described by axion particles. The proposed framework departs from the standard CDM paradigm due to a…
QCD CP-violation scenario for a revised cosmological dynamics: analysis of the binned Pantheon Sample of Super Novae Ia
Giovanni Montani, Nakia Carlevaro, Maria Giovanna Dainotti +1
We investigate a modified cosmological dynamics in which the Universe is composed of baryonic matter and a complex (classical) scalar field. The phase component of this field is id…
Interpretation of the binned SNe Ia Master Sample data via a scalar quintessence component: phantom transition?
Giovanni Montani, Iolanda Navone, Maria Giovanna Dainotti +1
We study a modified cosmological scenario for the late Universe, involving an evolutionary dark energy model associated with the dynamics of a self-interacting scalar field in a po…
Parameterizations of the Hubble Constant from the Binned Type Ia Supernova Master Sample: Logarithmic versus Power-law Forms
Maria Giovanna Dainotti, Avik Banerjee, Andre' LeClair +1
Motivated by the Hubble tension and the increasing debate about the redshift-dependency in the inferred Hubble constant, we investigate its dependence within the flat CDM framew…
Revisiting the Matter Creation Process: Observational Constraints on Gravitationally Induced Dark Energy and the Hubble Tension
Tiziano Schiavone, Mariaveronica De Angelis, Luis A. Escamilla +2
The Hubble tension and the unknown origin of dark energy motivate the exploration of alternative mechanisms for late-time cosmic acceleration. We investigate gravitationally induce…