Add to ORKGThe QED processes e+e− → e+e−μ+μ− and e+e− → e+e−τ+τ− are studied with the L3 detector at LEP using an untagged data sample collected at centre-of-mass energies 161 GeV ≤ √s 209 GeV. The τ -pairs are observed through the associated decay of one τ into eνν and the other into ππν. The cross sections are measured as a function of √s. For muon pairs, the cross section of the γ γ → μ+μ− process is also measured as a function of the two-photon centre-of-mass energy for 3 GeV ≤ Wγγ 40 GeV. Good agreement is found between these measurements and the O(α4) QED expectations. In addition, limits on the anomalous magnetic and electric dipole moments of the τ lepton are extracted.Facultad de Ciencias Exacta
Inclusive production of D*± mesons in two-photon collisions was measured by the L3 experiment at LEP...
The reaction e+e− → e+e−γ ∗γ ∗ → e+e− hadrons for quasi-real photons is studied using data from √s =...
AbstractInclusive jet production, e+e−→e+e− jet X, is studied using 560 pb−1 of data collected at LE...
The QED processes e^+e^−→e^+e^−μ^+μ^− and e^+e^−→e^+e^−τ^+τ^− are studied with the L3 detector at LE...
Inclusive jet production, e+e− → e+e− jet X, is studied using 560 pb−1 of data collected at LEP with...
Inclusive charged hadron production, e+e−→e+e−h±X, is studied using 414 pb^(−1) of data collected at...
Single- and multi-photon events with missing energy are selected in 619 pb−1 of data collected by th...
Exclusive ρ+ρ− production in two-photon collisions between a quasi-real photon, γ *, and a mid-virtu...
AbstractDouble-tag events in two-photon collisions are studied using the L3 detector at LEP centre-o...
The reactions e(+)e(-) --> e(+)e(-) LambdaX and e(+)e(-) --> e(+)e(-) LambdaX are studied using data...
Events stemming from the pair-production of Z bosons in e+e− collisions are studied using 217.4 pb−1...
Double-tag events in two-photon collisions are studied using the L3 detector at LEP centre-of-mass e...
Exclusive ρ+ρ− production in two-photon collisions involving a single highly-virtual photon is studi...
AbstractInclusive J/ψ production in photon–photon collisions has been observed at LEP II beam energi...
The cross section for open-beauty production in photon–photon collisions is measured using the whole...
Inclusive production of D*± mesons in two-photon collisions was measured by the L3 experiment at LEP...
The reaction e+e− → e+e−γ ∗γ ∗ → e+e− hadrons for quasi-real photons is studied using data from √s =...
AbstractInclusive jet production, e+e−→e+e− jet X, is studied using 560 pb−1 of data collected at LE...
The QED processes e^+e^−→e^+e^−μ^+μ^− and e^+e^−→e^+e^−τ^+τ^− are studied with the L3 detector at LE...
Inclusive jet production, e+e− → e+e− jet X, is studied using 560 pb−1 of data collected at LEP with...
Inclusive charged hadron production, e+e−→e+e−h±X, is studied using 414 pb^(−1) of data collected at...
Single- and multi-photon events with missing energy are selected in 619 pb−1 of data collected by th...
Exclusive ρ+ρ− production in two-photon collisions between a quasi-real photon, γ *, and a mid-virtu...
AbstractDouble-tag events in two-photon collisions are studied using the L3 detector at LEP centre-o...
The reactions e(+)e(-) --> e(+)e(-) LambdaX and e(+)e(-) --> e(+)e(-) LambdaX are studied using data...
Events stemming from the pair-production of Z bosons in e+e− collisions are studied using 217.4 pb−1...
Double-tag events in two-photon collisions are studied using the L3 detector at LEP centre-of-mass e...
Exclusive ρ+ρ− production in two-photon collisions involving a single highly-virtual photon is studi...
AbstractInclusive J/ψ production in photon–photon collisions has been observed at LEP II beam energi...
The cross section for open-beauty production in photon–photon collisions is measured using the whole...
Inclusive production of D*± mesons in two-photon collisions was measured by the L3 experiment at LEP...
The reaction e+e− → e+e−γ ∗γ ∗ → e+e− hadrons for quasi-real photons is studied using data from √s =...
AbstractInclusive jet production, e+e−→e+e− jet X, is studied using 560 pb−1 of data collected at LE...