Reheating in a Brane Monodromy Inflation Model

Details Reheating in a Brane Monodromy Inflation Model Reheating in a Brane Monodromy Inflation Model

2008-08-28

arxiv.org/abs/0808.3936v2

JHEP 0810:110,2008

Physics

High Energy Physics

High Energy Physics - Theory

13 pages, reference added

Scientific paper

10.1088/1126-6708/2008/10/110

We study reheating in a recently proposed brane "monodromy inflation" model in which the inflaton is the position of a D4 brane on a "twisted torus". Specifically, we study the repeated collisions between the D4 brane and a D6 brane (on which the Standard Model fields are assumed to be localized) at a fixed position along the monodromy direction as the D4 brane rolls down its potential. We find that there is no trapping of the rolling D4 brane until it reaches the bottom of its potential, and that reheating is entirely described by the last brane encounter. Previous collisions have negligible effect on the brane velocity and hence on the reheat temperature. In the context of our setup, reheating is efficient and the reheat temperature is therefore high.

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