Search for the Standard Model Higgs Boson in e^+e^- Collisions at sqrt{s} = 161-172 GeV

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dc.creatorThe OPAL Collaboration
dc.creatoral, K. Ackerstaff et
dc.date1997-09-05
dc.date.accessioned2026-07-07T11:46:49Z
dc.date.available2026-07-07T11:46:49Z
dc.descriptionThis paper describes a search for the Standard Model Higgs boson using data from e^+e^- collisions collected at center-of-mass energies of 161, 170 and 172 GeV by the OPAL detector at LEP. The data collected at these energies correspond to integrated luminosities of 10.0, 1.0 and 9.4 pb^-1, respectively. The search is sensitive to the main final states from the process in which the Higgs boson is produced in association with a fermion anti-fermion pair, namely four jets, two jets with missing energy, and two jets produced together with a pair of electron, muon or tau leptons. One candidate event is observed, in agreement with the Standard Model background expectation. In combination with previous OPAL searches at center-of-mass energies close to the Z^0 resonance and the revised previous OPAL searches at 161 GeV, we derive a lower limit of 69.4 GeV for the mass of the Standard Model Higgs boson at the 95% confidence level.
dc.description33 pages, LaTeX, 12 eps figures included, submitted to Zeit. Phys. C
dc.identifierhttps://arxiv.org/abs/hep-ex/9709003
dc.identifierhttp://arxiv.org/abs/hep-ex/9709003
dc.identifierEur.Phys.J.C1:425-438,1998
dc.identifierdoi:10.1007/s100520050094
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/202361
dc.subjectHigh Energy Physics - Experiment
dc.titleSearch for the Standard Model Higgs Boson in e^+e^- Collisions at sqrt{s} = 161-172 GeV
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