Future collider signatures of the possible 750 GeV state

Abdelhak Djouadi, John Ellis, Rohini Godbole, Jeremie Quevillon*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

28 Citations (Scopus)
147 Downloads (Pure)


If the recent indications of a possible state Φ with mass ~ 750 GeV decaying into two photons reported by ATLAS and CMS in LHC collisions at 13 TeV were to become confirmed, the prospects for future collider physics at the LHC and beyond would be affected radically, as we explore in this paper. Even minimal scenarios for the Φ resonance and its γγ decays require additional particles with masses (Formula presented.). We consider here two benchmark scenarios that exemplify the range of possibilities: one in which Φ is a singlet scalar or pseudoscalar boson whose production and γγ decays are due to loops of coloured and charged fermions, and another benchmark scenario in which Φ is a superposition of (nearly) degenerate CP-even and CP-odd Higgs bosons in a (possibly supersymmetric) two-Higgs doublet model also with additional fermions to account for the γγ decay rate. We explore the implications of these benchmark scenarios for the production of Φ and its new partners at colliders in future runs of the LHC and beyond, at higher-energy pp colliders and at e+e and γγ colliders, with emphasis on the bosonic partners expected in the doublet scenario and the fermionic partners expected in both scenarios.

Original languageEnglish
Article number205
Number of pages63
JournalJournal of High Energy Physics
Issue number3
Publication statusPublished - 31 Mar 2016


  • Phenomenological Models
  • Supersymmetry Phenomenology


Dive into the research topics of 'Future collider signatures of the possible 750 GeV state'. Together they form a unique fingerprint.

Cite this