Author(s): Valentina Salvatelli, Najla Said, Marco Bruni, Alessandro Melchiorri, and David Wands
Discrepancies between different cosmological datasets could indicate interactions between dark matter and dark energy that occurred late in cosmological evolution, when the universe was approximately 6 billion years old.
[Phys. Rev. Lett. 113, 181301] Published Thu Oct 30, 2014