Search for Nonstandard Higgs Bosons Using High Mass Photon Pairs in pp̄ → γγ + 2 Jets at √s = 1.8 TeV
1999
A search has been carried out for events in the channel pp→γγ+2jets. Such a signature can characterize the production of a nonstandard Higgs
bosontogether with a
Wor
Z boson. We refer to this nonstandard Higgs, having standard model couplings to
vector bosonsbut no coupling to fermions, as a "
bosonicHiggs". With the requirement of two high transverse energy photons and two jets, the diphoton mass (m γγ ) distribution is consistent with expected background. A 90 (95)% confidence level (C.L.) upper limit on the cross section as a function of mass is calculated, ranging from 0.60 (0.80) pb for m γγ =65 GeV/c 2 to 0.26 (0.34) pb for m γγ =150 GeV/c 2 , corresponding to a 95% C.L. lower limit on the mass of a
bosonicHiggs of 78.5 GeV/c 2 .
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