SIMP model at NNLO in chiral perturbation theory

Martin Rasmus Lundquist Hansen, K. Langaeble, F. Sannino

Research output: Contribution to journalJournal articleResearchpeer-review

132 Downloads (Pure)

Abstract

We investigate the phenomenological viability of a recently proposed class of composite dark matter models where the relic density is determined by 3 to 2 number-changing processes in the dark sector. Here the pions of the strongly interacting field theory constitute the dark matter particles. By performing a consistent next-to-leading and next-to-next-to-leading order chiral perturbative investigation we demonstrate that the leading order analysis cannot be used to draw conclusions about the viability of the model. We further show that higher order corrections substantially increase the tension with phenomenological constraints challenging the viability of the simplest realisation of the strongly interacting massive particle (SIMP) paradigm.
Original languageEnglish
Article number075036
JournalPhysical Review D
Volume92
Issue number7
Number of pages8
ISSN2470-0010
DOIs
Publication statusPublished - 2015

Bibliographical note

RevTeX, two-columns, 7 pages, 6 figures

Fingerprint

Dive into the research topics of 'SIMP model at NNLO in chiral perturbation theory'. Together they form a unique fingerprint.

Cite this