We report on measurements of mass and total decay width of the W boson and of triple-gauge-boson couplings, gamma WW and AWW, with the L3 detector at LEP. W-pair events produced in e(+)e(-) interactions between 161GeV and 172GeV centre-of-mass energy are selected in a data sample corresponding to a total luminosity of 21.2 pb(-1). The mass and total decay width of the W boson are determined to be M-W = 80.75(-0.27)(+0.26) (LEP) GeV and Gamma(W) = 1.74(-0.78)(+0.88)(stat.) +/- 0.25(syst.)GeV, respectively. Limits on anomalous triple-gauge-boson couplings, gamma WW and ZWW, are determined, in particular -1.5 < delta(Z) < 1.9 (95% CL), excluding vanishing ZWW coupling at more than 958 confidence level. (C) 1997 Elsevier Science B.V.

Measurements of mass, width and gauge couplings of the W boson at LEP / M. Acciarri, O. Adriani, M. AguilarBenitez, S. Ahlen, J. Alcaraz, G. Alemanni, J. Allaby, A. Aloisio, G. Alverson, M. G. Alviggi, G. Ambrosi, H. Anderhub, V. P. Andreev, T. Angelescu, F. Anselmo, A. Arefiev, T. Azemoon, T. Aziz, P. Bagnaia, L. Baksay, et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - STAMPA. - 413:(1997), pp. 176-190. [10.1016/S0370-2693(97)01082-4]

Measurements of mass, width and gauge couplings of the W boson at LEP

ADRIANI, OSCAR;D'ALESSANDRO, RAFFAELLO;
1997

Abstract

We report on measurements of mass and total decay width of the W boson and of triple-gauge-boson couplings, gamma WW and AWW, with the L3 detector at LEP. W-pair events produced in e(+)e(-) interactions between 161GeV and 172GeV centre-of-mass energy are selected in a data sample corresponding to a total luminosity of 21.2 pb(-1). The mass and total decay width of the W boson are determined to be M-W = 80.75(-0.27)(+0.26) (LEP) GeV and Gamma(W) = 1.74(-0.78)(+0.88)(stat.) +/- 0.25(syst.)GeV, respectively. Limits on anomalous triple-gauge-boson couplings, gamma WW and ZWW, are determined, in particular -1.5 < delta(Z) < 1.9 (95% CL), excluding vanishing ZWW coupling at more than 958 confidence level. (C) 1997 Elsevier Science B.V.
1997
413
176
190
M. Acciarri;O. Adriani;M. AguilarBenitez;S. Ahlen;J. Alcaraz;G. Alemanni;J. Allaby;A. Aloisio;G. Alverson;M. G. Alviggi;G. Ambrosi;H. Ande...espandi
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/772889
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