The mass and width of the W boson are determined in e + e − collisions at LEP using 183 pb −1 of data recorded at a centre-of-mass energy s =189 GeV with the OPAL detector. The invariant mass distributions from 970 W + W − →qqqq and 1118 W + W − →qqℓ ν ℓ candidate events are used to measure the mass of the W boson, M W =80.451±0.076 (stat.)±0.049 (syst.) GeV. A direct measurement of the width of the W boson gives Γ W =2.09±0.18 (stat.)±0.09 (syst.) GeV. The results are combined with previous OPAL results from 78 pb −1 of data recorded with s from 161 to 183 GeV, to obtain: M W =80.432±0.066 (stat.)±0.045 (syst.) GeV, Γ W =2.04±0.16 (stat.)±0.09 (syst.) GeV. The consistency of the direct measurement of M W with that inferred from other meas...
The mass of the W boson is determined in e(+)e(-) collisions at LEP by the direct reconstruction of ...
The mass of the W boson is determined from the direct reconstruction of W decays in WW→qq̄qq̄ and WW...
A measurement of the W boson mass and width has been performed by the DELPHI collaboration using the...
The mass and width of the W boson are determined in e + e − collisions at LEP using 183 pb −1 of dat...
The mass and width of the W boson are determined in e+e− collisions at LEP using 183 pb−1 of data re...
The mass and width of the W boson are measured using e+e- -> W+W- events from the data sample collec...
The mass and width of the W boson are measured using e+e- -> W+W- events from the data sample collec...
A measurement of the W mass and width has been performed by the DELPHI collaboration using the data ...
A measurement of the W mass and width has been performed by the DELPHI Collaboration using the data ...
The mass of the W boson is determined in e + e − collisions at LEP by the direct reconstruction of W...
The mass of the W boson is determined in e+e- collisions at LEP by the direct reconstruction of W de...
A measurement of the W mass and width has been performed by the DELPHI collaboration using the data ...
A measurement of the W boson mass and width has been performed by the DELPHI collaboration using the...
A measurement of the W boson mass and width has been performed by the DELPHI collaboration using the...
The mass of the W boson is determined in e(+)e(-) collisions at LEP by the direct reconstruction of ...
The mass of the W boson is determined from the direct reconstruction of W decays in WW→qq̄qq̄ and WW...
A measurement of the W boson mass and width has been performed by the DELPHI collaboration using the...
The mass and width of the W boson are determined in e + e − collisions at LEP using 183 pb −1 of dat...
The mass and width of the W boson are determined in e+e− collisions at LEP using 183 pb−1 of data re...
The mass and width of the W boson are measured using e+e- -> W+W- events from the data sample collec...
The mass and width of the W boson are measured using e+e- -> W+W- events from the data sample collec...
A measurement of the W mass and width has been performed by the DELPHI collaboration using the data ...
A measurement of the W mass and width has been performed by the DELPHI Collaboration using the data ...
The mass of the W boson is determined in e + e − collisions at LEP by the direct reconstruction of W...
The mass of the W boson is determined in e+e- collisions at LEP by the direct reconstruction of W de...
A measurement of the W mass and width has been performed by the DELPHI collaboration using the data ...
A measurement of the W boson mass and width has been performed by the DELPHI collaboration using the...
A measurement of the W boson mass and width has been performed by the DELPHI collaboration using the...
The mass of the W boson is determined in e(+)e(-) collisions at LEP by the direct reconstruction of ...
The mass of the W boson is determined from the direct reconstruction of W decays in WW→qq̄qq̄ and WW...
A measurement of the W boson mass and width has been performed by the DELPHI collaboration using the...