Brane Inflation and Cosmic String Tension in Superstring Theory

Thumbnail Image

Date

Authors

Journal Title

Journal ISSN

Volume Title

Publisher

Abstract

Description

In a simple reanalysis of the KKLMMT scenario, we argue that the slow roll condition in the D3-anti-D3-brane inflationary scenario in superstring theory requires no more than a moderate tuning. The cosmic string tension is very sensitive to the conformal coupling: with less fine-tuning, the cosmic string tension (as well as the ratio of tensor to scalar perturbation mode) increases rapidly and can easily saturate the present observational bound. In a multi-throat brane inflationary scenario, this feature substantially improves the chance of detecting and measuring the properties of the cosmic strings as a window to the superstring theory and our pre-inflationary universe.
Combined bounds from WMAP and SDSS Lyman alpha experiments are added for analysis, changes are added to the table

Keywords

High Energy Physics - Theory, Astrophysics, General Relativity and Quantum Cosmology, High Energy Physics - Phenomenology

Citation

URI

http://salesiana.dossiersoluciones.com/handle/123456789/184554

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/hep-th/0501099
 http://arxiv.org/abs/hep-th/0501099
 JCAP0503:009,2005
 doi:10.1088/1475-7516/2005/03/009

Collections

arXiv