Brane preheating
高能物理 - 唯象学
2009-10-31 v1 天体物理学
广义相对论与量子宇宙学
高能物理 - 理论
摘要
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 particles via nonperturbative decay of inflaton even if its coupling is of order . We also discuss massive particle creation heavier than inflaton, which may play important roles for the baryo- and lepto-genesis scenarios.
引用
@article{arxiv.hep-ph/0012141,
title = {Brane preheating},
author = {Shinji Tsujikawa and Kei-ichi Maeda and Shuntaro Mizuno},
journal= {arXiv preprint arXiv:hep-ph/0012141},
year = {2009}
}
备注
6 pages, 2 figures, submitted to Physical Review D