Search for Nonstandard Higgs Bosons Using High Mass Photon Pairs in pp¯→γγ+2 Jets at √s=1.8 TeV

A search has been carried out for events in the channel $p\overline{p}\to \gamma \gamma +2\mathrm{}\mathrm{jets}$. Such a signature can characterize the production of a nonstandard Higgs boson together with a $W$ or $Z$ boson. We refer to this nonstandard Higgs, having standard model couplings to vector bosons but no coupling to fermions, as a “bosonic Higgs.” With the requirement of two high transverse energy photons and two jets, the diphoton mass $\left(m_{\gamma \gamma }\right)$ 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 $m_{\gamma \gamma }=65\mathrm{GeV}{/c}^2$ to 0.26 (0.34) pb for $m_{\gamma \gamma }=150\mathrm{GeV}{/c}^2$, corresponding to a $95\%$ C.L. lower limit on the mass of a bosonic Higgs of $78.5\mathrm{GeV}{/c}^2$.