We consider phenomenological consequences of the RS2-$n$ model with an infinite extra dimension, namely, the production, in high-energy collisions, of a photon or $Z$ boson escaping from our brane in association with a photon remaining on the brane. This would show up as process $e^{+}{e}^{-}\to \gamma +$ nothing. We compare the signal with the standard model background coming from $e^{+}{e}^{-}\to \gamma \overline{\nu }\nu$. We also make a comparison with $e^{+}{e}^{-}\to \gamma +$ nothing in the Arkani-Hamed–Dimopoulos–Dvali model.

• Received 13 February 2011

DOI:https://doi.org/10.1103/PhysRevD.83.104031