Abstract.
Neutral Higgs bosons were searched for in the data collected by DELPHI at a centre-of-mass energy of 183 GeV, corresponding to an integrated luminosity of 54 pb\(^{-1}\). The production of the lightest neutral Higgs boson with either an on-shell Z boson or a neutral pseudo-scalar Higgs boson was analysed. Lower limits at the 95% confidence level were obtained on the Higgs boson masses. The limits are 85.7 GeV/\(c^2\) for the Standard Model Higgs boson and 74.4 GeV/\(c^2\) for the scalar and 75.3 GeV/\(c^2\) for the pseudo-scalar Higgs bosons as predicted by the minimal super-symmetric extension of the Standard Model with commonly used assumptions on the model parameters, plus the assumption that the mass of the pseudo-scalar boson is greater than 20 GeV/\(c^2\). These results significantly improve the limits reached with previous data.
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Received: 9 February 1999 / Published online: 28 September 1999
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The DELPHI Collaboration., Abreu et al., P. Search for neutral Higgs bosons in e\(^+\)e\(^-\) collisions at \(\sqrt{s}=183\) GeV. Eur. Phys. J. C 10, 563–604 (1999). https://doi.org/10.1007/s100529900111
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DOI: https://doi.org/10.1007/s100529900111