SingleW boson production in electron–positron collisions is studied with the L3 detector at centre-of-mass energies between 192 GeV and 209 GeV. Events with two acoplanar hadronic jets or a single energetic lepton are selected, and the singleW cross section is measured. Combining the results with measurements at lower centre-of-mass energies, the ratio of the measured cross section to the Standard Model expectation is found to be 1.12+0.11−0.10±0.03. From all singleW data, the WWγgaugecouplingparameterκγ is measured to be 1.116+0.082−0.086±0.068.
Production of Single W Bosons at LEP and Measurement of WW gamma Gauge Coupling Parameters
CAVALLO, Nicola;
2002-01-01
Abstract
SingleW boson production in electron–positron collisions is studied with the L3 detector at centre-of-mass energies between 192 GeV and 209 GeV. Events with two acoplanar hadronic jets or a single energetic lepton are selected, and the singleW cross section is measured. Combining the results with measurements at lower centre-of-mass energies, the ratio of the measured cross section to the Standard Model expectation is found to be 1.12+0.11−0.10±0.03. From all singleW data, the WWγgaugecouplingparameterκγ is measured to be 1.116+0.082−0.086±0.068.File in questo prodotto:
Non ci sono file associati a questo prodotto.
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
