King's College London

Research portal

Categorisation and detection of dark matter candidates from string/M-theory hidden sectors

Research output: Contribution to journalArticle

Bobby S. Acharya, Sebastian A.R. Ellis, Gordon L. Kane, Brent D. Nelson, Malcolm Perry

Original languageEnglish
Article number130
Pages (from-to)1-36
JournalJournal of High Energy Physics
Volume2018
Issue number9
Early online date24 Sep 2018
DOIs
Publication statusPublished - Sep 2018

Documents

King's Authors

Abstract

We study well-motivated dark matter candidates arising from weakly-coupled hidden sectors in compactified string/M-theory. Imposing generic top-down constraints greatly restricts allowed candidates. By considering the possible mechanisms for achieving the correct dark matter relic density, we compile categories of viable dark matter candidates and annihilation mediators. We consider the case where supersymmetry breaking occurs via moduli stabilisation and is gravitationally mediated to the visible and other hidden sectors, without assuming sequestering of the sector in which supersymmetry is broken. We find that in this case, weakly-coupled hidden sectors only allow for fermionic dark matter. Additionally, most of the mechanisms for obtaining the full relic density only allow for a gauge boson mediator, such as a dark Z′. Given these considerations, we study the potential for discovering or constraining the allowed parameter space given current and future direct detection experiments, and direct production at the LHC. We also present a model of a hidden sector which would contain a satisfactory dark matter candidate.

Download statistics

No data available

View graph of relations

© 2018 King's College London | Strand | London WC2R 2LS | England | United Kingdom | Tel +44 (0)20 7836 5454