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We have searched for the decay of ?'s into a monochromatic photon accompanied by other particles as a signal for the reaction ?γ+Higgs. Two different methods are presented both with null result. While we are not sensitive to the branching ratios predicted by the standard model with a minimal Higgs content, we can put limits on the possible values of the lowest Higgs mass and the ratio of the vacuum expectation values for more complex models. Our results are also of interest with respect to the ξ(2.2) being a Higgs in the context of such models.  相似文献   
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Using the CUSB detector we have measured the production of electrons from the decay B→eνX. We obtain a branching ratio for B→eνX of (13.2±0.8±1.4)%. The observed energy spectrum of the electrons implies that the coupling (bc)W dominates over (bu)W. An upper limit Γ(B→eνXu)/Γ(B→eνXc)<5.5% at 90% confidence level is obtained, where Xc contains a c-quark and Xu contains no charmed particles.  相似文献   
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