Gauge bosons in a five-dimensional theory with localized gravity

We consider the possibility of gauge bosons living in the recently proposed five-dimensional theory with localized gravity. We study the mass spectrum of the Kaluza-Klein (KK) excitations of the gauge fields and calculate the ir couplings pra to the boundaries of the fifth dimension. We find a differ ent behaviour from the case of the graviton. In particular, we find that th e massless mode is not localized in the extra dimension and that the KK exc itations have sizeable couplings to the two boundaries. We also discuss pos sible phenomenological implications for the case of the standard model gaug e bosons. (C) 2000 Published by Elsevier Science B.V.