Pair-Production of W Bosons in $e^+ e^-$ Interactions at $\sqrt{s}$ = 161 GeV

We report on the measurement of W-boson pair-production with the L3 detector at LEP at a centre-of-mass energy of 161.34~\GeV. In a data sample corresponding to a total luminosity of 11~pb$^{-1}$, we select four-fermion events with high invariant masses of pairs of hadronic jets or leptons. Combinin...

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Bibliographic Details
Published in:Physics letters. B 1997, Vol.398, p.223-238
Main Authors: Acciarri, M., Adriani, O., Aguilar-Benitez, M., Ahlen, S., Alpat, B., Alcaraz, J., Alemanni, G., Allaby, J., Aloisio, A., Alverson, G., Alviggi, M G., Ambrosi, G., Anderhub, H., Andreev, V P., Angelescu, T., Anselmo, F., Antreasyan, D., Arefiev, A., Azemoon, T., Aziz, T., Bagnaia, P., Baksay, L., Banerjee, S., Banicz, K., Barillere, R., Barone, L., Bartalini, P., Baschirotto, A., Basile, M., Battiston, R., Bay, A., Becattini, F., Becker, U., Behner, F., Berdugo, J., Berges, P., Bertucci, B., Betev, B L., Bhattacharya, S., Biasini, M., Biland, A., Bilei, G M., Blaising, J J., Blyth, S C., Bobbink, G J., Bock, R., Bohm, A., Borgia, B., Bourilkov, D., Bourquin, M., Braccini, S., Branson, J G., Brigljevic, V., Brock, I C., Buffini, A., Buijs, A., Burger, J D., Burger, W J., Busenitz, J., Button, A., Cai, X D., Campanelli, M., Capell, M., Cara Romeo, G., Caria, M., Carlino, G., Cartacci, a M., Casaus, J., Castellini, G., Cavallari, F., Cavallo, N., Cecchi, C., Cerrada, M., Cesaroni, F., Chamizo, M., Chan, A., Chang, y H., Chaturvediu, K., Chekanov, S V., Chemarin, M., Chen, A., Chen, G., Chen, G M., Chen, H F., Chen, H S., Chereau, X., Chiefari, G., Chien, C Y., Choi, M T., Cifarelli, L., Cindolo, F., Civinini, C., Clare, I., Clare, R., Cohn, H O., Coignet, G., Colijn, a P., Colino, N., Commichau, V., Costantini, S.
Format: Article
Language:English
Subjects:
High Energy Physics - Experiment
Physics
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Summary:We report on the measurement of W-boson pair-production with the L3 detector at LEP at a centre-of-mass energy of 161.34~\GeV. In a data sample corresponding to a total luminosity of 11~pb$^{-1}$, we select four-fermion events with high invariant masses of pairs of hadronic jets or leptons. Combining all final states, the measured total cross section for W-pair production is: $\SWW = 2.89^{+0.81}_{-0.70}~(stat.)\pm0.14~(syst.)$~pb. Within the Standard Model, this corresponds to a mass of the W boson of: $\MW = 80.80^{+0.48}_{-0.42}~(exp.)\pm 0.03$~(LEP)~\GeV. Limits on anomalous triple-vector-boson couplings are derived. \end{abstract}
ISSN:0370-2693