# Gravitational production of dark matter in the Peebles-Vilenkin model

## TL;DR

This paper investigates how superheavy dark matter can be produced through gravitational effects or instant preheating in the Peebles-Vilenkin inflation model, requiring masses around 10^{16} to 10^{17} GeV.

## Contribution

It compares two scenarios of dark matter production in a specific inflation model and identifies the mass range necessary for viability.

## Key findings

- Superheavy dark matter mass range is approximately 10^{16} to 10^{17} GeV.
- Both production scenarios are viable within this mass range.
- Gravitational effects and instant preheating can produce dark matter in the specified model.

## Abstract

The gravitational production of superheavy dark matter, in the Peebles-Vilenkin quintessential inflation model, is studied in two different scenarios: When the particles, whose decay products reheat the universe after the end of the inflationary period, are created gravitationally, and when are produced via instant preheating. We show that the viability of both scenarios requires that the mass of the superheavy dark matter to be approximately between 10^{16} and 10^{17} GeV.