Collider experiment reveals 95% confidence limits on Higgs boson production across multilepton final states in proton-antiproton collisions, constraining standard model cross sections.
We present a search for Higgs bosons in multilepton final states in pp̄ collisions at √s=1.96 TeV recorded with the D0 detector at the Fermilab Tevatron Collider, using the full Run II data set with integrated luminosities of up to 9.7 fb^-1. The multilepton states considered are eeμ, eμμ, μτₕτₕ, and like-charge e^±μ^± pairs. These channels directly probe the HVV ($V=W$, Z) coupling of the Higgs boson in production and decay. The μτₕτₕ channel is also sensitive to H→τ⁺τ^- decays. Upper limits at the 95% C.L on the rate of standard model Higgs boson production are derived in the mass range 100≤MH≤200 GeV. The expected and observed limits are a factor of 6.3 and 8.4 above the predicted standard model cross section at MH=125 GeV. We also interpret the data in a fermiophobic Higgs boson model.
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Abazov et al. (2013) studied this question.
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