KK parity in warped extra dimension

Kaustubh Agashe*, Adam Falkowski, Ian Low, Géraldine Servant

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

65 Scopus citations


We construct models with a Kaluza-Klein (KK) parity in a five-dimensional warped geometry, in an attempt to address the little hierarchy problem present in setups with bulk Standard Model fields. The lightest KK particle (LKP) is stable and can play the role of dark matter. We consider the possibilities of gluing two identical slices of AdS 5 in either the UV (IR-UV-IR model) or the IR region (UV-IR-UV model) and discuss the model-building issues as well as phenomenological properties in both cases. In particular, we find that the UV-IR-UV model is not gravitationally stable and that additional mechanisms might be required in the IR-UV-IR model to address flavor issues. Collider signals of the warped KK parity are different from either the conventional warped extra dimension without KK parity, in which the new particles are not necessarily pair-produced, or the KK parity in flat universal extra dimensions, where each KK level is nearly degenerate in mass. Dark matter and collider properties of a TeV mass KK Z gauge boson as the LKP are discussed.

Original languageEnglish (US)
Article number027
JournalJournal of High Energy Physics
Issue number4
StatePublished - Apr 1 2008


  • Beyond standard model
  • Cosmology of theories beyond the SM
  • Field theories in higher dimensions

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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