TY  - JOUR
AU  - Di Valentino, E.
AU  - Gariazzo, S.
AU  - Giunti, C.
AU  - Mena, O.
AU  - Pan, S.
AU  - Yang, W. Q.
PY  - 2022
DA  - 2022//
TI  - Minimal dark energy: Key to sterile neutrino and Hubble constant tensions?
T2  - Phys. Rev. D
JO  - Physical Review D
SP  - 103511
EP  - 15pp
VL  - 105
IS  - 10
PB  - Amer Physical Soc
AB  - 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 parametrize the dark energy component, constitute very appealing scenarios which may solve long-standing, pending tensions. On the one hand, they alleviate significantly the tension between cosmological observations and the presence of one sterile neutrino motivated by the short-baseline anomalies: we obtain a 95% CL cosmological bound on the mass of a fully thermalized fourth sterile neutrino (N-eff = 4) equal to m(s) < 0.65(1.3) eV within the Phenomenologically Emergent Dark Energy (PEDE) and Vacuum Metamorphosis (VM) scenarios under consideration. Interestingly, these limits are in agreement with the observations at short-baseline experiments, and the PEDE scenario is favored with respect to the Lambda CDM case when the full data combination is considered. On the other hand, the Hubble tension is satisfactorily solved in almost all the minimal dark energy schemes explored here. These phenomenological scenarios may therefore shed light on differences arising from near and far Universe probes, and also on discrepancies between cosmological and laboratory sterile neutrino searches.
SN  - 2470-0010
UR  - https://arxiv.org/abs/2110.03990
UR  - https://doi.org/10.1103/PhysRevD.105.103511
DO  - 10.1103/PhysRevD.105.103511
LA  - English
N1  - WOS:000807806300013
ID  - DiValentino_etal2022
ER  -