Gravitational particle production in gravity theories with non-minimal derivative couplings
Journal Article
·
· Journal of Cosmology and Astroparticle Physics
- Department of Physics, National Technical University of Athens, Zografou Campus GR 157 73, Athens (Greece)
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.
- OSTI ID:
- 22282719
- Journal Information:
- Journal of Cosmology and Astroparticle Physics, Vol. 2013, Issue 08; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 1475-7516
- Country of Publication:
- United States
- Language:
- English
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