A Note on Gravitational Particle Production in Supergravity

Abstract

It is pointed out that the gravitational particle production rate of a scalar component of a chiral superfield in supergravity with minimal Kahler potential can be significantly suppressed compared with a minimal scalar field in non-supersymmetric Einstein gravity. This suppression is avoided for some choice of the inflaton sector and also for non-minimal Kahler potential of the chiral superfield.

16 pages, 1 figure

References in corpus (8)

• Inflaton Decay in Supergravity
• Gravitational Effects on Inflaton Decay
• On Thermal Gravitational Contribution to Particle Production and Dark Matter
• Inflaton Decay through Supergravity Effects
• Gravitational reheating through conformally coupled superheavy scalar particles
• Gravitational Production of Superheavy Dark Matter and Associated Cosmological Signatures
• Spontaneous Non-thermal Leptogenesis in High-scale Inflation Models
• Gravitational inflaton decay and the hierarchy problem

Cited by in corpus (2)

• Computation of Gravitational Particle Production Using Adiabatic Invariants
• Energy extraction and particle acceleration around a rotating dyonic black hole in $N=2$, $U(1{)}^2$ gauged supergravity