Constraining dark-matter ensembles with supernova data

Aditi Desai, Keith R. Dienes, Brooks Thomas

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

The constraints on nonminimal dark sectors involving ensembles of unstable dark-matter species are well established and quite stringent in cases in which these species decay to visible-sector particles. However, in cases in which these ensembles decay exclusively to other, lighter dark-sector states, the corresponding constraints are less well established. In this paper, we investigate how information about the expansion rate of the universe at low redshifts gleaned from observations of Type Ia supernovae can be used to constrain ensembles of unstable particles which decay primarily into dark radiation.

Original languageEnglish (US)
Article number035031
JournalPhysical Review D
Volume101
Issue number3
DOIs
StatePublished - Feb 1 2020

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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