Brane preheating

Shinji Tsujikawa*, Kei Ichi Maeda, Shuntaro Mizuno

*この研究の対応する著者

研究成果: Article査読

19 被引用数 (Scopus)

抄録

We study brane-world preheating in a massive chaotic inflationary scenario where scalar fields are confined on the three-brane. Assuming that the quadratic contribution in energy densities dominates the Hubble expansion rate during preheating, the amplitude of the inflaton decreases slowly relative to the standard dustdominated case. This leads to an efficient production of -4 particles via the nonperturbative decay of the inflaton even if its coupling is of the order of g= 10~5. We also discuss massive particle creation heavier than the inflaton, which may play an important role for baryogenesis and leptogenesis scenarios.

本文言語English
論文番号123511
ジャーナルPhysical Review D
63
12
DOI
出版ステータスPublished - 2001

ASJC Scopus subject areas

  • 物理学および天文学(その他)

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