Singlet scalars as Higgs boson imposters at the Large Hadron Collider

Ian Low*, Joseph Lykken, Gabe Shaughnessy

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

40 Scopus citations


An electroweak singlet scalar can couple to pairs of vector bosons through loop-induced dimension five operators. Compared to a standard model Higgs boson, the singlet decay widths in the diphotons and Zγ channels are generically enhanced, while decays into massive final states like WW and ZZ are kinematically disfavored. The overall event rates into γγ and Zγ can exceed the standard model expectations by orders of magnitude. Such a singlet may appear as a resonant signal in the γγ and Zγ channels, even with a mass above the WW kinematic threshold.

Original languageEnglish (US)
Article number035027
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Issue number3
StatePublished - Aug 24 2011

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)


Dive into the research topics of 'Singlet scalars as Higgs boson imposters at the Large Hadron Collider'. Together they form a unique fingerprint.

Cite this