Brane preheating

Details Brane preheating Brane preheating

2000-12-13

arxiv.org/abs/hep-ph/0012141v1

Phys.Rev. D63 (2001) 123511

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages, 2 figures, submitted to Physical Review D

Scientific paper

10.1103/PhysRevD.63.123511

We study brane-world preheating in massive chaotic inflationary scenario where scalar fields are confined on the 3-brane. Assuming that quadratic contribution in energy densities dominates the Hubble expansion rate during preheating, the amplitude of inflaton decreases slowly relative to the standard dust-dominated case. This leads to an efficient production of $\chi$ particles via nonperturbative decay of inflaton even if its coupling is of order $g=10^{-5}$. We also discuss massive particle creation heavier than inflaton, which may play important roles for the baryo- and lepto-genesis scenarios.

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