662 citations · 4.2k across the 84 of their papers we have counts for
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Are Cosmological Data Excluding Sterile Neutrinos or Only the Fully Thermalized Limit?
Artur Ladeira, Rafael C. Nunes, Eleonora Di Valentino +1
We present a cosmological reassessment of light sterile-neutrino scenarios, examining whether current observations exclude sterile neutrinos as a class or primarily constrain the f…
The CosmoVerse White Paper: Addressing observational tensions in cosmology with systematics and fundamental physics
Eleonora Di Valentino, Jackson Levi Said, Adam Riess +533
The standard model of cosmology has provided a good phenomenological description of a wide range of observations both at astrophysical and cosmological scales for several decades.…
Scale and redshift dependent limits on cosmic neutrino properties
Deng Wang, Olga Mena, Eleonora Di Valentino +1
Cosmological neutrino mass and abundance measurements are reaching unprecedented precision. Testing their stability versus redshift and scale is a crucial issue, as it can serve as…
Current constraints on cosmological scenarios with very low reheating temperatures
Nicola Barbieri, Thejs Brinckmann, Stefano Gariazzo +3
We present a comprehensive analysis of the effects of models with very low reheating scenarios () on the cosmological observables and deri…
Neutrino cosmology after DESI: tightest mass upper limits, preference for the normal ordering, and tension with terrestrial observations
Jun-Qian Jiang, William Giarè, Stefano Gariazzo +6
The recent DESI Baryon Acoustic Oscillation measurements have led to tight upper limits on the neutrino mass sum, potentially in tension with oscillation constraints requiring $\su…
Updating neutrino mass constraints with Background measurements
Deng Wang, Olga Mena, Eleonora Di Valentino +1
Low-redshift probes, such as Baryon Acoustic Oscillations (BAO) and Supernovae Ia luminosity distances, have been shown to be crucial for improving the bounds on the total neutrino…
Neutrinos in Cosmology
Eleonora Di Valentino, Stefano Gariazzo, Olga Mena
Neutrinos are the least known particle in the Standard Model of elementary particle physics. They play a crucial role in cosmology, governing the universe's evolution and shaping t…
How robust are the parameter constraints extending the CDM model?
Stefano Gariazzo, William Giarè, Olga Mena +1
We present model-marginalized limits on the six standard CDM cosmological parameters (, , , , and ), as well a…
Neutrino masses in cosmology
S. Gariazzo
We review the status of neutrino mass constraints obtained from cosmological observations, with a particular focus on the results derived considering Cosmic Microwave Background (C…
Non-standard cosmic expansion histories: Neutrino decoupling and primordial nucleosynthesis signatures
D. Aristizabal Sierra, S. Gariazzo, A. Villanueva
Cosmological scenarios with a non-standard equation of state can involve ultrastiff fluids, understood as primordial fluids for which . Their energy densities can dominate…
On the dark radiation role in the Hubble constant tension
Stefano Gariazzo, Olga Mena
Dark radiation, parameterized in terms of , has been considered many times in the literature as a possible remedy in alleviating the Hubble constant () tension. W…
Impact of the damping tail on neutrino mass constraints
Eleonora Di Valentino, Stefano Gariazzo, William Giarè +1
Model-independent mass limits assess the robustness of current cosmological measurements of the neutrino mass scale. Consistency between high-multipole and low-multiple Cosmic Micr…
A novel model-marginalized cosmological bound on the QCD axion mass
Eleonora Di Valentino, Stefano Gariazzo, William Giarè +3
We present model-marginalized limits on mixed hot dark matter scenarios, which consider both thermal neutrinos and thermal QCD axions. A novel aspect of our analyses is the inclusi…
Model marginalized constraints on neutrino properties from cosmology
Eleonora di Valentino, Stefano Gariazzo, Olga Mena
We present robust, model-marginalized limits on both the total neutrino mass () and abundance () to minimize the role of parameterizations, priors and models…
Pseudoscalar sterile neutrino self-interactions in light of Planck, SPT and ACT data
Mattia Atzori Corona, Riccardo Murgia, Matteo Cadeddu +4
We reassess the viability of a cosmological model including a fourth additional sterile neutrino species that self-interacts through a new pseudoscalar degree of freedom. We perfor…
Late time interacting cosmologies and the Hubble constant tension
Stefano Gariazzo, Eleonora Di Valentino, Olga Mena +1
In this manuscript we reassess the potential of interacting dark matter-dark energy models in solving the Hubble constant tension. These models have been proposed but also question…
Minimal dark energy: key to sterile neutrino and Hubble constant tensions?
Eleonora Di Valentino, Stefano Gariazzo, Carlo Giunti +3
Minimal dark energy models, described by the same number of free parameters of the standard cosmological model with cold dark matter plus a cosmological constant to parameterize th…
On the most constraining cosmological neutrino mass bounds
Eleonora Di Valentino, Stefano Gariazzo, Olga Mena
We present here up-to-date neutrino mass limits exploiting the most recent cosmological data sets. By making use of the Cosmic Microwave Background temperature fluctuation and pola…
The galaxy power spectrum take on spatial curvature and cosmic concordance
Sunny Vagnozzi, Eleonora Di Valentino, Stefano Gariazzo +3
The concordance of the CDM cosmological model in light of current observations has been the subject of an intense debate in recent months. The 2018 Planck Cosmic Microwave Backg…
Soundness of Dark Energy properties
Eleonora Di Valentino, Stefano Gariazzo, Olga Mena +1
Type Ia Supernovae (SNeIa) used as standardizable candles have been instrumental in the discovery of cosmic acceleration, usually attributed to some form of dark energy (DE). Recen…
Sterile neutrino self-interactions: tension and short-baseline anomalies
Maria Archidiacono, Stefano Gariazzo, Carlo Giunti +2
Sterile neutrinos with a mass in the eV range have been invoked as a possible explanation of a variety of short baseline (SBL) neutrino oscillation anomalies. However, if one consi…
Bounds on light sterile neutrino mass and mixing from cosmology and laboratory searches
Steffen Hagstotz, Pablo F. de Salas, Stefano Gariazzo +5
We provide a consistent framework to set limits on properties of light sterile neutrinos coupled to all three active neutrinos using a combination of the latest cosmological data a…
Relic neutrinos: local clustering and consequences for direct detection
S. Gariazzo
The Cosmic Neutrino Background is a prediction of the standard cosmological model, but it has been never observed directly. Experiments with the aim of detecting relic CNB neutrino…
Neutrino clustering in the Milky Way and beyond
P. Mertsch, G. Parimbelli, P. F. de Salas +3
The standard cosmological model predicts the existence of a Cosmic Neutrino Background, which has not yet been observed directly. Some experiments aiming at its detection are curre…