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Measurement of the W mass and width in e<sup>+</sup>e<sup>-</sup>collisions at 183 GeV

Abbiendi, G; Ackerstaff, K; Alexander, G; Allison, J; Altekamp, N; Anderson, KJ; Anderson, S; ... Gorn, W; + view all (1999) Measurement of the W mass and width in e<sup>+</sup>e<sup>-</sup>collisions at 183 GeV. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics , 453 (1-2) pp. 138-152. 10.1016/S0370-2693(99)00308-1.

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Abstract

Using a data sample of 57 pb-1recorded at a centre-of-mass energy of 183 GeV with the OPAL detector at LEP, 282 W+W-→ qq̄qq̄ and 300 W+W-→ qq̄lv̄lcandidate events are used to obtain a measurement of the mass of the W boson, Mw= 80.39 ± 0.13(stat.) ± 0.05(syst.) GeV, assuming the Standard Model relation between Mwand TW. A second fit provides a direct measure of the width of the W boson and gives TW= 1.96 ± 0.34(stat.) + 0.20(syst.) GeV. These results are combined with previous OPAL results to obtain Mw= 80.38 ± 0.12(stat.) + 0.05(syst.) GeV and Tw= 1.84 ± 0.32(stat.) ± 0.20(syst.) GeV. © 1999 Published by Elsevier Science B.V. All rights reserved.

Type: Article
Title: Measurement of the W mass and width in e<sup>+</sup>e<sup>-</sup>collisions at 183 GeV
DOI: 10.1016/S0370-2693(99)00308-1
URI: http://discovery.ucl.ac.uk/id/eprint/31905
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