Brane preheating

Shinji Tsujikawa, Kei Ichi Maeda, Shuntaro Mizuno

Research output: Contribution to journalArticlepeer-review

Abstract

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.

Original languageEnglish
Article number123511
JournalPhysical Review D
Volume63
Issue number12
DOIs
Publication statusPublished - 2001

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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