Gravitational production of super-Hubble-mass particles: an analytic approach
Abstract
Through a mechanism similar to perturbative particle scattering, particles of mass m larger than the Hubble expansion rate Hinf during inflation can be gravitationally produced at the end of inflation without the exponential suppression powers of (-m/Hinf). Here we develop an analytic formalism for computing particle production for such massive particles. We apply our formalism to specific models that have been previously been studied only numerically, and we find that our analytical approximations reproduce those numerical estimates well.
Turn this paper into a lesson
ArcXiv compiles a structured reading guide from this paper's metadata: plain-English importance, contributions, prerequisite concepts, which sections to read first, flashcards, and a quiz. Grounded in the abstract, never invented.