Heavy dark matter through the Higgs portal
By J. March-Russell, S. West, D. Cumberbatch, D. Hooper. 2008
193 citations recorded by the source corpus.
Motivated by Higgs Portal and Hidden Valley models, heavy particle dark matter that communicates with the supersymmetric Standard Model via pure Higgs sector interactions is considered. We show that a thermal relic abundance consistent with the measured density of dark matter is possible for masses up to ~ 30 TeV. For dark matter masses above ~ 1 TeV, non-perturbative Sommerfeld corrections to the annihilation rate are large, and have the potential to greatly affect indirect detection signals. For large dark matter masses, the Higgs-dark-matter-sector couplings are large and we show how such models may be given a UV completion within the context of so-called ``Fat-Higgs" models. Higgs Portal dark matter provides an example of an attractive alternative to conventional MSSM neutralino dark matter that may evade discovery at the LHC, while still being within the reach of current and upcoming indirect detection experiments.
Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/91bbe45b5c3a120fde6fd335923965e6859bd6e6
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Citations in the corpus
- Sommerfeld enhancement: general results from field theory diagrams (2009, methodology): “Define Here we treat the initial particles χ having a mass m as Dirac particles of opposite charge, to be definite, and imagine that before annihilating they attract each other by the exchange of a vector boson called VB (the exchange of a scalar would give the same non-relativistic potential).”
- Semi-annihilation of dark matter (2010, background): “While we focus on the case of a field φ “portal” to the SM [29, 30, 31, 32], in more general dark matter scenarios φ could be a SM field itself [33, 34, 35].”
- Non-abelian dark sectors and their collider signatures (2009, unknown): “GeV introduces a Sommerfeld enhancement [13, 14, 15, 16], giving a boost factor of the right size to enhance the DM annihilation cross-section2.”