Resonant particle production with nonminimally coupled scalar fields in preheating after inflation

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15 Citations (Scopus)

Abstract

We investigate the resonant particle production of a scalar field (Formula presented) coupled nonminimally to a spacetime curvature (Formula presented) (Formula presented) as well as to an inflaton field φ (Formula presented) In the case of (Formula presented) the ξ effect assists g resonance in certain parameter regimes. However, for (Formula presented) (Formula presented) resonance is not enhanced by the (Formula presented) effect because of the (Formula presented) suppression effect as well as a back reaction effect. If (Formula presented) the maximal fluctuation of produced (Formula presented) particles is (Formula presented) for (Formula presented) which is larger than the minimally coupled case with (Formula presented)

Original languageEnglish
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume60
Issue number6
DOIs
Publication statusPublished - 1999

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

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