TY  - JOUR
AU  - Di Valentino, E.
AU  - Melchiorri, A.
AU  - Mena, O.
PY  - 2017
DA  - 2017//
TI  - Can interacting dark energy solve the H-0 tension?
T2  - Phys. Rev. D
JO  - Physical Review D
SP  - 043503
EP  - 11pp
VL  - 96
IS  - 4
PB  - Amer Physical Soc
AB  - The answer is yes. We indeed find that interacting dark energy can alleviate the current tension on the value of the Hubble constant H-0 between the cosmic microwave background anisotropies constraints obtained from the Planck satellite and the recent direct measurements reported by Riess et al. 2016. The combination of these two data sets points toward a nonzero dark matter-dark energy coupling. at more than two standard deviations, with xi = -0.26(-0.12)(+0.16) at 95% C.L., i.e. with a moderate evidence for interacting dark energy with an odds ratio of 6:1 respect to a non interacting cosmological constant. However the H-0 tension is better solved when the equation of state of the interacting dark energy component is allowed to freely vary, with a phantomlike equation of state w = -1.185 +/- 0.064 (at 68% C.L.), ruling out the pure cosmological constant case, w = -1, again at more than two standard deviations. When Planck data are combined with external datasets, as BAO, JLA Supernovae Ia luminosity distances, cosmic shear or lensing data, we find perfect consistency with the cosmological constant scenario and no compelling evidence for a dark matter-dark energy coupling.
SN  - 2470-0010
UR  - http://arxiv.org/abs/1704.08342
UR  - https://doi.org/10.1103/PhysRevD.96.043503
DO  - 10.1103/PhysRevD.96.043503
LA  - English
N1  - WOS:000427529900001
ID  - DiValentino_etal2017
ER  -