Vector Bosons in the Randall-Sundrum 2 and Lykken-Randall models and unparticles
Abstract
Unparticle behavior is shown to be realized in the Randall-Sundrum 2 (RS 2) and the Lykken-Randall (LR) brane scenarios when brane-localized Standard Model currents are coupled to a massive vector field living in the five-dimensional warped background of the RS 2 model. By the AdS/CFT dictionary these backgrounds exhibit certain properties of the unparticle CFT at large N_c and strong 't Hooft coupling. Within the RS 2 model we also examine and contrast in detail the scalar and vector position-space correlators at intermediate and large distances. Unitarity of brane-to-brane scattering amplitudes is seen to imply a necessary and sufficient condition on the positivity of the bulk mass, which leads to the well-known unitarity bound on vector operators in a CFT.
Keywords
Cite
@article{arxiv.0905.2607,
title = {Vector Bosons in the Randall-Sundrum 2 and Lykken-Randall models and unparticles},
author = {Alexander Friedland and Maurizio Giannotti and Michael Graesser},
journal= {arXiv preprint arXiv:0905.2607},
year = {2010}
}
Comments
60 pages, 8 figures