Seesaw at LHC through Left - Right Symmetry

Understand

I argue that LHC may shed light on the nature of neutrino mass through the probe of the seesaw mechanism.

• The smoking gun signature is lepton number violation through the production of same sign lepton pairs, a collider analogy of the neutrinoless double beta decay.
• I discuss this in the context of L-R symmetric theories, which led originally to neutrino mass and the seesaw mechanism.
• A W_R gauge boson with a mass in a few TeV region could easily dominate neutrinoless double beta decay, and its discovery at LHC would have spectacular signatures of parity restoration and lepton number violation.