Apr 24 – 28, 2017
Palais des Papes, Avignon
Europe/Paris timezone


Apr 24, 2017, 4:45 PM
Chambre du Trésorier (Palais des Papes, Avignon)

Chambre du Trésorier

Palais des Papes, Avignon


Guillermo Ballesteros (CEA Paris-Saclay)


I will present a minimal extension of the Standard Model that addresses dark matter, the strong CP problem, the smallness of neutrino masses, baryogenesis and primordial inflation. The model contains a new U(1) symmetry and a single new physics scale of the order of 10^11 GeV. Dark matter is made of axions, whose mass in predicted to be in a narrow range, which will be probed in the near future. Remarkably, inflation does not suffer from unitarity issues, unlike in other minimal proposals, and reheating can be computed in detail since all the particle content up to the Planck scale is assumed to be known. This allows to draw sharp predictions for the CMB properties.

Primary author

Guillermo Ballesteros (CEA Paris-Saclay)

Presentation materials