Journal of High Energy Physics

, 2016:127 | Cite as

The Higgs portal above threshold

  • Nathaniel Craig
  • Hou Keong Lou
  • Matthew McCulloughEmail author
  • Arun Thalapillil
Open Access
Regular Article - Theoretical Physics


The discovery of the Higgs boson opens the door to new physics interacting via the Higgs Portal, including motivated scenarios relating to baryogenesis, dark matter, and electroweak naturalness. We systematically explore the collider signatures of singlet scalars produced via the Higgs Portal at the 14 TeV LHC and a prospective 100 TeV hadron collider. We focus on the challenging regime where the scalars are too heavy to be produced in the decays of an on-shell Higgs boson, and instead are produced primarily via an off-shell Higgs. Assuming these scalars escape the detector, promising channels include missing energy in association with vector boson fusion, monojets, and top pairs. We forecast the sensitivity of searches in these channels at \( \sqrt{s}=14 \) & 100 TeV and compare collider reach to the motivated parameter space of singlet-assisted electroweak baryogenesis, Higgs Portal dark matter, and neutral naturalness.


Higgs Physics Beyond Standard Model 


Open Access

This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.


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Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (, which permits use, duplication, adaptation, distribution, and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

Authors and Affiliations

  • Nathaniel Craig
    • 1
  • Hou Keong Lou
    • 2
  • Matthew McCullough
    • 3
    Email author
  • Arun Thalapillil
    • 4
  1. 1.Department of PhysicsUniversity of CaliforniaSanta BarbaraU.S.A.
  2. 2.Department of PhysicsPrinceton UniversityPrincetonU.S.A.
  3. 3.Theory Division, CERNGeneva 23Switzerland
  4. 4.Department of Physics and AstronomyRutgers UniversityPiscatawayU.S.A.

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