title: Implications of Higgs searches on the four-generation standard model.
abstract: 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≤m(H)≤127.5 GeV, an exclusion limit above 99% confidence level is found.
authors.affiliation: Raymond and Beverly Sackler School of Physics and Astronomy, Tel-Aviv University, Tel-Aviv 69978, Israel. ekuflik@gmail.com
authors.forename: Eric
authors.initials: E
authors.lastname: Kuflik
authors.forename: Yosef
authors.initials: Y
authors.lastname: Nir
authors.forename: Tomer
authors.initials: T
authors.lastname: Volansky