Hunting the dark Higgs

Michael Duerr, Alexander Grohsjean, Felix Kahlhoefer*, Bjoern Penning, Kai Schmidt-Hoberg, Christian Schwanenberger

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)

7 Citations (Scopus)

Abstract

We discuss a novel signature of dark matter production at the LHC resulting from the emission of an additional Higgs boson in the dark sector. The presence of such a dark Higgs boson is motivated simultaneously by the need to generate the masses of the particles in the dark sector and the possibility to relax constraints from the dark matter relic abundance by opening up a new annihilation channel. If the dark Higgs boson decays into Standard Model states via a small mixing with the Standard Model Higgs boson, one obtains characteristic large-radius jets in association with missing transverse momentum that can be used to efficiently discriminate signal from backgrounds. We present the sensitivities achievable in LHC searches for dark Higgs bosons with already collected data and demonstrate that such searches can probe large regions of parameter space that are inaccessible to conventional mono-jet or di-jet searches.

Original languageEnglish
Article number143
JournalJournal of High Energy Physics
Volume2017
Issue number4
DOIs
Publication statusPublished - Apr 2017

Keywords

  • Beyond Standard Model
  • Cosmology of Theories beyond the SM

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    Duerr, M., Grohsjean, A., Kahlhoefer, F., Penning, B., Schmidt-Hoberg, K., & Schwanenberger, C. (2017). Hunting the dark Higgs. Journal of High Energy Physics, 2017(4), [143]. https://doi.org/10.1007/JHEP04(2017)143