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arXiv · hep-ph/0012141

Brane preheating

Shinji Tsujikawa·Kei-ichi Maeda·Shuntaro Mizuno
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Abstract

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 $χ$ 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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Shinji Tsujikawa, Kei-ichi Maeda, Shuntaro Mizuno. 2000-12-13. Brane preheating. https://doi.org/10.1103/physrevd.63.123511

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