English

Non-tachyonic brane inflation

High Energy Physics - Phenomenology 2009-11-10 v4 Astrophysics High Energy Physics - Theory

Abstract

We consider non-tachyonic hybrid inflation in the context of the braneworld cosmology. When one considers models for brane inflation, hybrid inflation is a natural consequence of the tachyon condensation if it appears at the end of inflation. In this case, however, reheating is a difficult problem due to the peculiar properties of the tachyon. In this paper we show some models for brane inflation where a new type of hybrid inflation is realized due to the localized matter fields. The obvious advantage of our scenario is successful reheating, which is due to the potential that is localized on the brane. The serious problem of the loop correction is also avoided.

Keywords

Cite

@article{arxiv.hep-ph/0302035,
  title  = {Non-tachyonic brane inflation},
  author = {Tomohiro Matsuda},
  journal= {arXiv preprint arXiv:hep-ph/0302035},
  year   = {2009}
}

Comments

14pages, latex2e, references added, final version to appear in PRD