Thermal hybrid inflation in brane world

Details Thermal hybrid inflation in brane world Thermal hybrid inflation in brane world

2003-02-27

arxiv.org/abs/hep-ph/0302253v2

Phys.Rev. D68 (2003) 047702

Physics

High Energy Physics

High Energy Physics - Phenomenology

8pages, latex2e, footnotes added, accepted for publication in PRD

Scientific paper

10.1103/PhysRevD.68.047702

In conventional scenario of thermal inflation, the requirement that the reheating temperature must be larger than the temperature of the nucleosynthesis puts a lower bound on the mass of the inflaton field. At the same time, the mass of the inflaton field and the height of the potential during thermal inflation are intimately related. With these conditions, the conventional models for thermal inflation are quite restricted. Naively, one can expect that the above constraints may be removed if thermal inflation is realized within the setups for hybrid inflation. In this paper we show why it is difficult to construct hybrid models for thermal inflation within conventional supergravity, and then show a successful example in models for the braneworld. Our mechanism is based on the idea of non-tachyonic brane inflation.

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