5 research outputs found

    Search for the Standard Model Higgs Boson in e+e−e^+ e^- Interactions at 161≀s≀172161 \leq \sqrt{s} \leq 172 GeV

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    A search for the Standard Model Higgs boson has been performed with the L3 detector at LEP. The data sample was collected at three centre-of-mass energies, 161.3, 170.3 and 172.3 GeV with integrated luminosities of 10.8, 1.0 and 9.2 pb−1pb^-1, respectively. No Higgs signal is observed. In combination with previous data taken at the Z resonance, a lower Higgs mass limit, MH69.5M_H 69.5 GeV, is obtained at 95\% confidence level

    Search for heavy neutral and charged leptons in e+e−e^+ e^- annihilation at s\sqrt{s} = 161 GeV and s\sqrt{s} = 172 GeV

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    A search for unstable neutral and charged heavy leptons as well as for stable charged heavy leptons has been made at center-of-mass energies s\sqrt{s} = 161 GeV and s\sqrt{s} = 172 GeV with the L3 detector at LEP. No evidence for their existence was found. We exclude unstable neutral leptons of Dirac (Majorana) type for masses below 78.0 (66.7), 78.0 (66.7) and 72.2 (58.2) GeV, if the heavy neutrino couples to the electron, muon or tau family, respectively. We exclude unstable charged heavy leptons for masses below 81.0 GeV for a wide mass range of the associated neutral heavy lepton. The production of stable charged heavy leptons with a mass less than 84.2 GeV is also excluded. If the unstable charged heavy lepton decays via mixing into a massless neutrino, we exclude masses below 78.7 GeV

    Search for the Standard Model Higgs Boson in e+e−e^+ e^- Interactions at 161≀s≀172161 \leq \sqrt{s} \leq 172 GeV

    No full text
    A search for the Standard Model Higgs boson has been performed with the L3 detector at LEP. The data sample was collected at three centre-of-mass energies, 161.3, 170.3 and 172.3 GeV with integrated luminosities of 10.8, 1.0 and 9.2 pb−1pb^-1, respectively. No Higgs signal is observed. In combination with previous data taken at the Z resonance, a lower Higgs mass limit, MH69.5M_H 69.5 GeV, is obtained at 95\% confidence level

    Composite anodes for lithium-ion batteries: status and trends

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