Implications of higgs searches on the four-generation standard model

Eric Kuflik*, Yosef Nir, Tomer Volansky

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

33 Scopus citations


Within the four-generation standard model, the Higgs couplings to gluons and to photons deviate in a significant way from the predictions of the three-generation standard model. As a consequence, large departures in several Higgs production and decay channels are expected. Recent Higgs search results, presented by ATLAS, CMS, and CDF, hint on the existence of a Higgs boson with a mass around 125 GeV. Using these results and assuming such a Higgs boson, we derive exclusion limits on the four-generation standard model. For m H=125 GeV, the model is excluded above 99.95% confidence level. For 124.5 GeV≤mH≤127.5 GeV, an exclusion limit above 99% confidence level is found.

Original languageAmerican English
Article number091801
JournalPhysical Review Letters
Issue number9
StatePublished - 25 Feb 2013
Externally publishedYes


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