Single W 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, suid the single W 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(-0.10)(+0.11) +/- 0.03. Front all single W data, the WWgamma gauge coupling parameter kappagamma is measured to be 1.116(-0.086)(+0.082) +/- 0.068. (C) 2002 Published by Elsevier Science B.V.

Production of single W bosons at LEP and measurement of WW gamma gauge coupling parameters / Achard, P., Adriani, O., Aguilar Benitez, M., Alcaraz, J., Alemanni, G., Allaby, J., Aloisio, A., Alviggi, M., Anderhub, H., Andreev, V.P., Anselmo, F., Arefiev, A., Azemoon, T., Aziz, T., Bagnaia, P., Bajo, A., Baksay, G., Baksay, L., Baldew, S.V., Banerjee, S., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - STAMPA. - 547:(2002), pp. 151-163. [10.1016/S0370-2693(02)02768-5]

Production of single W bosons at LEP and measurement of WW gamma gauge coupling parameters

ALOISIO, ALBERTO;ALVIGGI, MARIAGRAZIA;CHIEFARI, GIOVANNI;DELLA VOLPE, DOMENICO;L. Lista;MEROLA, LEONARDO;NAPOLITANO, MARCO;PATRICELLI, SERGIO;SCIACCA, CRISOSTOMO;
2002

Abstract

Single W 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, suid the single W 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(-0.10)(+0.11) +/- 0.03. Front all single W data, the WWgamma gauge coupling parameter kappagamma is measured to be 1.116(-0.086)(+0.082) +/- 0.068. (C) 2002 Published by Elsevier Science B.V.
2002
Production of single W bosons at LEP and measurement of WW gamma gauge coupling parameters / Achard, P., Adriani, O., Aguilar Benitez, M., Alcaraz, J., Alemanni, G., Allaby, J., Aloisio, A., Alviggi, M., Anderhub, H., Andreev, V.P., Anselmo, F., Arefiev, A., Azemoon, T., Aziz, T., Bagnaia, P., Bajo, A., Baksay, G., Baksay, L., Baldew, S.V., Banerjee, S., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - STAMPA. - 547:(2002), pp. 151-163. [10.1016/S0370-2693(02)02768-5]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/469322
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