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Measurement and interpretation of the W pair cross-section in e+e− interactions at 161-GeV
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Measurement and interpretation of the W pair cross-section in e+e− interactions at 161-GeV
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| DELPHI Collaboration; Ferrer Soria, Antonio; Higón Rodríguez, Emilio; Castillo Giménez, María Victoria; Alemany Fernández, Reyes; Cabrera Urbán, Susana; Cortina Gil, Eduardo; Fuster Verdú, Juan A.; García García, Carmen; Hernández Rey, Juan José; Lacasta Llácer, Carlos; Martínez Vidal, Fernando; Martí García, Salvador; Navas Concha, Sergio; Salt Cairols, José | |||
| Aquest document és un/a article, creat/da en: 1997 | |||
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Este documento está disponible también en : 10.1016/S0370-2693(97)00226-8 |
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| In 1996 LEP ran at a centre-of-mass energy of 161 GeV, just above the threshold of W-pair production. DELPHI accumulated data corresponding to an integrated luminosity of 9.93 pb−1, and observed 29 events that are considered as candidates for W-pair production. From these, a cross-section for the doubly resonant e+e− → WW process of 3.67−0.85+0.97 ± 0.19 pb has been measured. Within the Standard Model, this cross-section corresponds to a mass of the W-boson of 80.40 ± 0.44 (stat.) ± 0.09 (syst.) ± 0.03 (LEP) GeV/c2. Alternatively, if mW is held fixed at its current value determined by other experiments, the observed cross-section is used to obtain limits on trilinear WWV (V ≡ γ, Z) couplings. | |||
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