Useful material for exotic naturalness signatures.

Twin Higgs and Folded SUSY: Displaced signatures arising from long-lived hidden glueballs. See https://arxiv.org/abs/1509.04284 and references therein.

Relaxion references:

• https://arxiv.org/abs/1504.07551 : the original proposal. They show that a viable model has these new vector like leptons with their own non-Abelian force that could lead to interesting dark shower like signatures.
• Relaxion with lower cutoff:
• ALPy signatures with Higgs mixing: https://arxiv.org/abs/1610.02025

Nnaturalness:

• Original paper: https://arxiv.org/abs/1607.06821
• Reference exploring signature of accessing more and more sectors as a function of cuts, which may be applicable to Nnaturalness: https://arxiv.org/abs/1706.05008