# WMAP5 Observationnal Constraints on Braneworld New Inflation Model

## TL;DR

This paper investigates a new inflation model within the Randall-Sundrum braneworld framework, deriving analytical perturbation spectra and comparing them with WMAP5 data to identify compatible parameter ranges.

## Contribution

It introduces a novel inflation potential in the braneworld context and derives analytical perturbation spectra using the Slow-Roll approximation at high energy.

## Key findings

- Certain parameter values yield perturbation spectra consistent with WMAP5 observations.
- Analytical expressions for perturbation spectra are derived in the high energy limit.
- The model's viability depends on specific parameter choices.

## Abstract

We study a new inflation potential in the framework of the Randall-Sundrum type 2 Braneworld model. Using the technic developped in(Phys. Rev. D75, 123504 (2007).1), we consider both an monomial and a new inflation potentials and apply the Slow-Roll approximation in high energy limit, to derive analytical expression of relevant perturabtion spectrum. We show that for some values of the parameter n of the potential, we obtain an perturbation spectrum wich present a good agreement with recent WMAP5 observations.