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Neutral-current four-fermion production in e+e- interactions at LEP
(2005)Physics Letters BNeutral-current four-fermion production, e+e -→ff̄f′f̄′, is studied in 0.7 fb -1 of data collected with the L3 detector at LEP at centre-of-mass energies s=183-209 GeV. Four final states are considered: qq̄νν̄ , qq̄ℓ+ℓ-, ℓ+ℓ-ℓ′+ℓ′- and ℓ+ℓ-νν̄, where ℓ denotes either an electron or a muon. Their cross sections are measured and found to agree with the Standard Model predictions. In addition, the e+e-→Zγ *→ff̄f′f̄′ process is studied and ...Journal Article -
Measurement of exclusive ρ+ ρ− production in mid-virtuality two-photon interactions and study of the γγ∗→ ρρ process at LEP
(2005)Physics Letters BJournal Article -
Z-boson production with two unobserved, back-to-back, hard photons at LEP
(2005)Physics Letters BJournal Article -
Measurement of the shadowing of high-energy cosmic rays by the Moon: A search for TeV-energy antiprotons
(2005)Astroparticle PhysicsJournal Article -
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Measurement of exclusive ρ0 ρ0 production in mid-virtuality two-photon interactions at LEP
(2004)Physics Letters BJournal Article -
Measurement of the atmospheric muon spectrum from 20 to 3000 GeV
(2004)Physics Letters BThe absolute muon flux between 20 and 3000 GeV is measured with the L3 magnetic muon spectrometer for zenith angles ranging from 0°to 58°. Due to the large exposure of about 150 m2sr d, and the excellent momentum resolution of the L3 muon chambers, a precision of 2.3% at 150 GeV in the vertical direction is achieved.The ratio of positive to negative muons is studied between 20 and 500 GeV, and the average vertical muon charge ratio is ...Journal Article -
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Measurement of exclusive ρ+ρ- production in high-Q2 two-photon collisions at LEP
(2004)Physics Letters BJournal Article