Heavy dark matter through the dilaton portal

Benjamin Fuks, Mark D. Goodsell, Dong Woo Kang, Pyungwon Ko, Seung J. Lee, Manuel Utsch

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


We re-examine current and future constraints on a heavy dilaton coupled to a simple dark sector consisting of a Majorana fermion or a Stückelberg vector field. We include three different treatments of dilaton-Higgs mixing, paying particular attention to a gauge-invariant formulation of the model. Moreover, we also invite readers to re-examine effective field theories of vector dark matter, which we show are missing important terms. Along with the latest Higgs coupling data, heavy scalar search results, and dark matter density/direct detection constraints, we study the LHC bounds on the model and estimate the prospects of dark matter production at the future HL-LHC and 100 TeV FCC colliders. We additionally compute novel perturbative unitarity constraints involving vector dark matter, dilaton and gluon scattering.

Original languageEnglish
Article number44
JournalJournal of High Energy Physics
Issue number10
Publication statusPublished - 2020 Oct 1

Bibliographical note

Publisher Copyright:
© 2020, The Author(s).


  • Phenomenological Models

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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