Theory Advances in BSM Physics

Abstract

Rather than attempting to summarise the full spectrum of recent advances in Beyond the Standard Model (BSM) theory, which are many, in this talk I will instead take the opportunity to focus on two frameworks related to the hierarchy problem currently receiving significant attention. They are the `Twin Higgs' and the `Relaxion'. I will summarise the basic underlying structure of these theories at a non-expert level and highlight some interesting phenomenological signatures or outstanding problems.

Comments: Contribution to the Proceedings of the International Symposium on Lepton Photon Interactions at High Energies, 17-22 August 2015, University of Ljubljana, Slovenia; 16 pages