Speaker
Dr
Andreas Ringwald
(DESY)
Description
A minimal extension of the Standard Model (SM) is presented
that provides a consistent picture of particle physics and cosmology
below the Planck scale accounting for inflation, baryogenesis, dark matter,
neutrino masses and solving the strong CP problem. We add to the SM
three right-handed SM singlet neutrinos, a new vector-like color triplet fermion
and a complex hidden scalar whose vacuum expectation value at ∼ 10^11 GeV
breaks lepton number and the Peccei-Quinn symmetry simultaneously. At low
energies, the model reduces to the SM, augmented by see-saw-generated
neutrino masses and mixing, plus the axion, which accounts for the
dark matter. Five fundamental problems of particle physics and
cosmology are solved at one stroke in this unified
Standard Model Axion See-saw Hidden scalar inflation (SM*A*S*H) model.
Primary author
Dr
Andreas Ringwald
(DESY)
