# Monopole Black Hole in Stringy gravity

## TL;DR

This paper investigates how the dilaton field in string-inspired gravity theories influences the properties and formation of monopole black holes, revealing an additional attractive interaction affecting their behavior.

## Contribution

It demonstrates the impact of the dilaton field on monopole black hole solutions and their Hawking evaporation in a stringy gravity context.

## Key findings

- Dilaton field introduces a mass-dependent extra attraction.
- Monopole black hole solutions are affected by the dilaton.
- Hawking evaporation behavior is modified by the dilaton presence.

## Abstract

The possible transition of large mass magnetic monopole solutions to monopole black hole solutions in Yang-Mills-Higgs theory with spontaneous symmetry breaking (SSB) coupled to the low energy effective theory of superstring with only dilatonic sector is studied. Our main motivation is to explore the effects of the dilaton field on the monopole black hole solutions. Working in the Einstein conformal gauge, it is explicitly shown, in terms of the Hawking evaporation of the monopole black hole, that the presence of the dilaton field appears to introduce a "mass dependent extra attractive interaction" in addition to that of the standard Einstein gravity into the system.