Unitarity in KK-graviton production, a case study in warped extra-dimensions
Abstract The Kaluza-Klein (KK) decomposition of higher-dimensional gravity gives rise to a Examination tower of KK-gravitons in the effective four-dimensional (4D) theory.Such massive spin-2 fields are known to be connected with unitarity issues and easily lead to a breakdown of the effective theory well below the naive scale of the interaction.How