Two Higgs doublet models augmented by a scalar colour octet

Li Cheng, German Valencia

Research output: Contribution to journalArticleResearchpeer-review

10 Citations (Scopus)


The LHC is now studying in detail the couplings of the Higgs boson in order to determine if there is new physics. Many recent studies have examined the available fits to Higgs couplings from the perspective of constraining two Higgs doublet models (2HDM). In this paper we extend those studies to include constraints on the one loop couplings of the Higgs to gluons and photons. These couplings are particularly sensitive to the existence of new coloured particles that are hard to detect otherwise and we use them to constrain a 2HDM augmented with a colour-octet scalar, a possibility motivated by minimal flavour violation. We first study theoretical constraints on this model and then compare them with LHC measurements.

Original languageEnglish
Article number79
Number of pages23
JournalJournal of High Energy Physics
Issue number9
Publication statusPublished - 1 Sep 2016


  • Beyond Standard Model
  • Higgs Physics

Cite this