Abstract
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 language | English |
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Article number | 44 |
Journal | Journal of High Energy Physics |
Volume | 2020 |
Issue number | 10 |
DOIs | |
Publication status | Published - 2020 Oct 1 |
Keywords
- Phenomenological Models
ASJC Scopus subject areas
- Nuclear and High Energy Physics