### 抜粋

We investigate the resonant particle production of a scalar field χ coupled nonminimally to a spacetime curvature R (ξRχ^{2}) as well as to an inflaton field φ(g^{2}φ^{2}χ^{2}). In the case of g≲3×10^{-4}, the ξ effect assists g resonance in certain parameter regimes. However, for g≳3×10^{-4}, g resonance is not enhanced by the ξ effect because of the ξ suppression effect as well as a back reaction effect. If ξ≈-4, the maximal fluctuation of produced χ particles is √〈χ^{2}〉_{max}≈2×10^{17} GeV for g≲1×10^{-5}, which is larger than the minimally coupled case with g≈1×10^{-3}.

元の言語 | English |
---|---|

ページ（範囲） | 1-19 |

ページ数 | 19 |

ジャーナル | Physical Review D - Particles, Fields, Gravitation and Cosmology |

巻 | 60 |

発行部数 | 6 |

出版物ステータス | Published - 1999 9 15 |

### ASJC Scopus subject areas

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

## フィンガープリント Resonant particle production with nonminimally coupled scalar fields in preheating after inflation' の研究トピックを掘り下げます。これらはともに一意のフィンガープリントを構成します。

## これを引用

Tsujikawa, S., Maeda, K. I., & Torii, T. (1999). Resonant particle production with nonminimally coupled scalar fields in preheating after inflation.

*Physical Review D - Particles, Fields, Gravitation and Cosmology*,*60*(6), 1-19.