4th IBS-MultiDark-IPPP Workshop

Session

Session 9

10 Oct 2019, 11:00

B438 (IBS-CTPU)

Conveners

Session 9

• Nassim Bozorgnia

19. Probing the Neutrino Mass Mechanism with the CMB

Samuel Witte (University of Valencia)

10/10/2019, 11:00

A generic feature of many neutrino mass models is the prediction of a pseudo-Goldstone mode arising from the spontaneous symmetry breaking of lepton number. This new particle, the so-called majoron, can modify the evolution of the energy density of the Universe and damp neutrino perturbations around the time of recombination, leading to distinctive signatures in the CMB. I will show that...

18. Asymmetric dark matter and cold dark sectors

Stephen Lonsdale (CTPU IBS)

10/10/2019, 11:30

There is a remarkable similarity between the dark matter mass density, of unknown origins, and the baryonic mass density which originates from a minuscule 1 in 10 billion asymmetry between matter and antimatter. Asymmetric dark matter models propose that a connected asymmetry generation mechanism is responsible for the abundance of both sectors. In this talk I will review these motivations...