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19922026
Showing 2000 · hep-exShow all

33 papers · 2 filters

hep-ex2000★ 17 cited

Search for the Standard Model Higgs boson in e+e- collisions at root(s) up to 202GeV

L3 Collaboration

The Standard Model Higgs boson is searched for in 233.2 pb-1 of data collected by the L3 detector at centre of mass energies from 192 GeV to 202 GeV. These data are consistent with…

hep-ex2000★ 11 cited

Search for Neutral Higgs Bosons of the Minimal Supersymmetric Standard Model in e+e- Interactions at root(s)=192-202GeV

L3 Collaboration

A search for the lightest neutral CP-even and the neutral CP-odd Higgs bosons of the Minimal Supersymmetric Standard Model is performed using 233.2 pb-1 of integrated luminosity co…

hep-ex2000★ 50 cited

Measurements of the Cross Sections for Open Charm and Beauty Production in gamma gamma Collisions at root(s)=189-202 GeV

L3 Collaboration

The production of c and b quarks in gamma-gamma collisions is studied with the L3 detector at LEP with 410 pb^-1 of data, collected at centre-of-mass energies from 189 GeV to 202 G…

hep-ex2000★ 20 cited

Search for Excited Leptons in e+ e- Interactions at sqrt(s)=192 - 202 GeV

L3 Collaboration

Excited leptons are searched for using the L3 detector at LEP. The data collected at centre-of-mass energies in the range from 192 up to 202 GeV correspond to a total luminosity of…

hep-ex2000★ 87 cited

Higgs Candidates in e+e- Interactions at root(s) = 206.6 GeV

L3 Collaboration

In a search for the Standard Model Higgs boson, carried out on 212.5 pb-1 of data collected by the L3 detector at the highest LEP centre-of-mass energies, including 116.5 pb-1 abov…

hep-ex2000★ 44 cited

K0s K0s Final State in Two-Photon Collisions and Implications for Glueballs

L3 Collaboration

The K0s K0s final state in two-photon collisions is studied with the L3 detector at LEP. The mass spectrum is dominated by the formation of the f_2'(1525) tensor meson in the helic…

hep-ex2000★ 50 cited

Light resonances in Ks K pi and eta pi pi final states in gamma gamma collisions at LEP

L3 Collaboration

The e+e- -> e+e- Ks K+- pi-+ e+e- -> e+e- eta pi+ pi- and final states are studied with the L3 detector at LEP using data collected at centre-of-mass energies from 183 GeV up to 20…

hep-ex2000★ 37 cited

Observation of Polarization in Bottomonium Production at sqrt(s)=38.8 GeV

C. N. Brown, T. C. Awes, M. E. Beddo +34

We present a measurement of the polarization observed for bottomonium states produced in p-Cu collisions at sqrt(s)=38.8 GeV. The angular distribution of the decay dimuons of the U…

hep-ex2000★ 7 cited

Study of Z Boson Pair Production in e^+e^- Interactions at \sqrt{s}=192 - 202 GeV

L3 Collaboration

The cross section for the production of Z boson pairs is measured using the data collected by the L3 detector at LEP in 1999 in e^+e^- collisions at centre-of-mass energies ranging…

hep-ex2000★ 24 cited

Search for Charged Higgs Bosons in e+e- Collisions at Centre-of-Mass Energies up to 202 GeV

L3 Collaboration

A search for pair-produced charged Higgs bosons is performed with the L3 detector at LEP using data collected at centre-of-mass energies between 192 and 202 GeV, corresponding to a…

hep-ex2000★ 696 cited

Tau Neutrinos Favored over Sterile Neutrinos in Atmospheric Muon Neutrino Oscillations

Kamiokande Collaboration

The previously published atmospheric neutrino data did not distinguish whether muon neutrinos were oscillating into tau neutrinos or sterile neutrinos, as both hypotheses fit the d…

hep-ex2000★ 16 cited

Measurement of the W-Pair Production Cross Section and W-Decay Branching Fractions in e+e- Interactions at sqrt{s}=189GeV

L3 Collaboration

The data collected by the L3 experiment at LEP at a centre-of-mass energy of 188.6 GeV are used to measure the W-pair production cross section and the W-boson decay branching fract…

hep-ex2000★ 8 cited

Search for a Higgs Boson Decaying into Two Photons in e+e- Interactions at sqrt{s}=189GeV

L3 Collaboration

A search is performed for a Higgs boson produced in association with a Z boson and decaying into two photons, using the L3 data collected at LEP at a centre-of-mass energy of 189 G…

hep-ex2000★ 4 cited

Search for anomalous couplings in the Higgs sector at LEP

L3 Collaboration

We search for a Higgs particle with anomalous couplings in the e+e- -> H gamma, e+e- -> HZ and e+e- -> He+e- processes with the L3 detector at LEP. We explore the mass range 70GeV…

hep-ex2000★ 13 cited

Measurement of the W+W-gamma Cross Section and Direct Limits on Anomalous Quartic Gauge Boson Couplings at LEP

L3 Collaboration

The process e+e- -> W+W-gamma is analysed using the data collected with the L3 detector at LEP at a centre-of-mass energy of 188.6GeV, corresponding to an integrated luminosity of…

hep-ex2000★ 17 cited

Measurement of Bose-Einstein Correlations in e+e- -> W+W- at root(s)=189GeV

L3 Collaboration

We investigate Bose-Einstein correlations (BEC) in W-pair production at root(s)=189GeV using the L3 detector at LEP. We observe BEC between particles from a single W decay in good…

hep-ex2000★ 3 cited

Determination of gamma/Z interference in e+e- annihilation at LEP

L3 Collaboration

An S-Matrix ansatz is used to determine the mass and width of the Z boson, as well as the contributions of gamma/Z interference and Z boson exchange to fermion-pair production. For…

hep-ex2000★ 11 cited

Production of Single W Bosons at \sqrt{s}=189 GeV and Measurement of WWgamma Gauge Couplings

L3 Collaboration

Single W boson production in electron-positron collisions is studied with the L3 detector at LEP. The data sample collected at a centre-of-mass energy of \sqrt{s} = 188.7GeV corres…

hep-ex2000★ 25 cited

QCD studies in e+e- annihilation from 30GeV to 189GeV

L3 Collaboration

We present results obtained from a study of the structure of hadronic events recorded by the L3 detector at various centre-of-mass energies. The distributions of event shape variab…

hep-ex2000★ 68 cited

Search for Manifestations of New Physics in Fermion-Pair Production at LEP

L3 Collaboration

The measurements of hadron and lepton-pair production cross sections and leptonic forward-backward asymmetries performed with the L3 detector at centre-of-mass energies between 130…

hep-ex2000★ 15 cited

Search for Anomalous ZZgamma and Zgammagamma couplings in the process e+e- -> Zgamma at LEP

L3 Collaboration

We search for anomalous trilinear gauge couplings in the ZZgamma and Zgammagamma vertices using data collected with the L3 detector at LEP at a centre-of-mass energy \sqrt{s}=189 G…

hep-ex2000★ 10 cited

Measurements of the bb~ production cross section and forward backward asymmetry at centre-of-mass energies above the Z pole at LEP

L3 Collaboration

The measurements of Rb = sigma(e+e- -> bb~)/sigma(e+e- -> qq~) and of the b quark forward-backward charge asymmetry, A^b_fb, at centre-of-mass energies above the Z pole are describ…

hep-ex2000★ 42 cited

16-N as a calibration source for Super-Kamiokande

Kamiokande Collaboration, E. Blaufuss, G. Guillian

The decay of 16-N is used to cross check the absolute energy scale calibration for solar neutrinos established by the electron linear accelerator (LINAC). A deuterium-tritium neutr…

hep-ex2000★ 8 cited

Search for an invisibly decaying Higgs boson in e^+e^- collisions at \sqrt{s} = 183 - 189 GeV

L3 Collaboration

A search for a Higgs boson decaying into invisible particles is performed using the data collected at LEP by the L3 experiment at centre-of-mass energies of 183 GeV and 189 GeV. Th…