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Combination of CDF and DO results on W boson mass and width.

CDF Collaboration, The and D0 Collaboration, The and Tevatron Electroweak Working Group, The and Bertram, I. A. (2004) Combination of CDF and DO results on W boson mass and width. Physical Review D, 70 (9). ISSN 1550-7998

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Abstract

The results based on 1992–95 data (Run 1) from the CDF and D0 experiments on the measurements of the W boson mass and width are presented, along with the combined results. We report a Tevatron collider average MW=80.456±0.059 GeV. We also report the Tevatron collider average of the directly measured W boson width ΓW=2.115±0.105 GeV. We describe a new joint analysis of the direct W mass and width measurements. Assuming the validity of the standard model, we combine the directly measured W boson width with the width extracted from the ratio of W and Z boson leptonic partial cross sections. This combined result for the Tevatron is ΓW=2.135±0.050 GeV. Finally, we use the measurements of the direct total W width and the leptonic branching ratio to extract the leptonic partial width Γ(W→eν)=224±13 MeV.

Item Type: Article
Journal or Publication Title: Physical Review D
Subjects: Q Science > QC Physics
Departments: Faculty of Science and Technology > Physics
ID Code: 23942
Deposited By: ep_ss_importer
Deposited On: 24 Feb 2009 11:30
Refereed?: Yes
Published?: Published
Last Modified: 21 Oct 2014 11:30
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/23942

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