Continuum spectra from warped dimensions

Abstract

Using a five dimensional (5D) warped model with two branes along the extra dimension, we study the Green's functions for gauge bosons with a mass gap $m_g=\rho /2$ and a continuum for $s>m_g^2$. We find that the Green's functions exhibit poles in the second Riemann sheet of the complex $s$ plane, denoting the existence of broad resonances. The positivity of the spectral functions is also analyzed. Finally, it is shown how the Green's functions can modify some Standard Model processes in $pp$ collisions.

Comments: 5 pages, 3 figures. Talk given by E.Megias at the 24th High-Energy Physics International Conference in Quantum Chromodynamics (QCD 21), Montpellier, France, 5 - 9 July 2021