&gt;Measurement of mass and width of the W boson at LEP

L3 Collab.

doi:10.1016/s0370-2693(99)00348-2

Scientific article

English

>Measurement of mass and width of the W boson at LEP

ContributorsL3 Collab.

CollaboratorsAmbrosi, Giovanni; Bourquin, Maurice; Braccini, Saverio; Paus-Cecchi, Claudia; Chamizo Llatas, Maria; Produit, Nicolas

; Deglon, Patrick; Extermann, Pierre; Field, John; Fredj, Lotfi; Kienzle, Maria Novella; Muheim, Franz; Sciarrino, Deborah

Published inPhysics letters. B, vol. 454, no. 3-4, p. 386-398

Publication date1999

Abstract

We report on measurements of the mass and total decay width of the W boson with the L3 detector at LEP. W-pair events produced in e + e − interactions between 161 GeV and 183 GeV centre-of-mass energy are selected in a data sample corresponding to a total luminosity of 76.7 pb −1 . Combining all final states in W-pair production, the mass and total decay width of the W boson are determined to be m W =80.61±0.15 GeV and Γ W =1.97±0.38 GeV , respectively.

Keywords

Electron positron: colliding beams
Electron positron: annihilation
W: pair production
W: leptonic decay
W: hadronic decay
Final state: (4fermion)
W: mass
W: width
L3
Experimental results
CERN LEP Stor
161-183 GeV-cms

Affiliation entities

Faculté des sciences / Département d'astronomie

Citation (ISO format)

L3 Collab. >Measurement of mass and width of the W boson at LEP. In: Physics letters. B, 1999, vol. 454, n° 3-4, p. 386–398. doi: 10.1016/s0370-2693(99)00348-2

Article (Published version)

Identifiers

PID : unige:187032
DOI : 10.1016/s0370-2693(99)00348-2
arXiv : hep-ex/9909010

Additional URL for this publicationhttps://linkinghub.elsevier.com/retrieve/pii/S0370269399003482

Journal ISSN0370-2693

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>Measurement of mass and width of the W boson at LEP

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