Dilaton coupled brane-world and field trapping

Abstract

We address solutions of a brane-world with a cosmological constant $\ensuremath{\lambda}$ by introducing the dilaton in 5D bulk, and we examine the localization of the graviton, gauge bosons, and dilaton. For those solutions, we find that both the graviton and gauge bosons can be trapped for either sign, positive or negative, and a wide range of $\ensuremath{\lambda}$ due to the nontrivial dilaton, while the dilaton cannot be trapped on the brane.