A phenomenological profile of Higgs portals at future colliders

@misc{detering2026phenomenological,
  title = {{A phenomenological profile of Higgs portals at future colliders}},
  author = {Maximilian Detering and Christoph Englert and Victor Maura and Tevong You},
  howpublished = {arXiv},
  year = {2026},
  month = sep,
  doi = {10.48550/arxiv.2609.19258},
  eprint = {2609.19258},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2609.19258},
}

TY  - UNPB
TI  - A phenomenological profile of Higgs portals at future colliders
AU  - Maximilian Detering
AU  - Christoph Englert
AU  - Victor Maura
AU  - Tevong You
PY  - 2026
DA  - 2026/09/16
PB  - arXiv
DO  - 10.48550/arxiv.2609.19258
UR  - https://arxiv.org/abs/2609.19258
AB  - Should the Higgs boson be found to couple to a hidden dark sector, it will become necessary to determine the nature of the Higgs portal responsible. Could the minimal, marginal Higgs portal operator be distinguished from a Higgs portal interaction involving a higher-dimensional operator? This is unlikely for Higgs portals with on-shell invisible decays to light dark sectors, but for an off-shell Higgs portal above threshold, where the dark sector is too heavy to contribute to the invisible Higgs decay width, we find that the higher-dimensional Higgs portal operators could in principle be differentiated by combining measurements across the integrated programme of HL-LHC, FCC-ee, and FCC-hh. This illustrates the complementarity of precision and high-energy exploration to phenomenologically profile Higgs portal interactions and probe possible connections between the electroweak scale and a hidden universe.
ER  -