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arXiv · 1305.5741

Gravitational Particle Production in Gravity Theories with Non-minimal Derivative Couplings

George Koutsoumbas·Konstantinos Ntrekis·Eleftherios Papantonopoulos
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Abstract

We study the gravitational production of heavy X-particles of mass of the order of the inflaton mass, produced after the end of inflation. We find that, in the presence of a derivative coupling of the inflaton field or of the X-field to the Einstein tensor, the number of gravitationally produced particles is suppressed as the strength of the coupling is increased.

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George Koutsoumbas, Konstantinos Ntrekis, Eleftherios Papantonopoulos. 2013-07-15. Gravitational Particle Production in Gravity Theories with Non-minimal Derivative Couplings. https://doi.org/10.1088/1475-7516%2F2013%2F08%2F027

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