Leptogenesis and LHC Physics with Type III See-Saw

Understand

The See-Saw mechanism provides a nice way to explain why neutrino masses are so much lighter than their charged lepton partners.

• It also provides a nice way to explain baryon asymmetry in our universe via the leptogenesis mechanism.
• In this talk we review leptogenesis and LHC physics in a See-Saw model proposed in 1989, now termed the Type III See-Saw model.
• In this model, $SU(2)_L$ triplet leptons are introduced with the neutral particles of the triplets playing the role of See-Saw.