Dark photon portal into mirror world

TL;DR

This paper explores the theoretical possibility that dark photons could serve as a natural portal into the mirror world, originating from string theory, but finds the interactions are too weak for practical detection.

Contribution

It proposes a scenario linking dark photons and mirror matter from heterotic string theory, highlighting the potential but negligible interaction strength.

Findings

Dark photons may connect to mirror matter via string theory mechanisms.

Interactions are predicted to be too weak for current experimental detection.

Theoretical framework for dark photon-mirror matter connection.

Abstract

Dark photons and mirror matter are well-motivated dark matter candidates. It is possible that both of them arose during the compactification and symmetry breaking scenario of the heterotic $E_8\times E_8$ string theory and are related to each other. In this case, dark photons can become a natural portal into the mirror world. Unfortunately, the expected magnitude of the induced interactions of ordinary matter with mirror matter is too small to be of phenomenological interest.