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Combination of CDF and D0 results on the W boson mass and width
Baringer, Philip S. Bean, Alice Coppage, Don Hebert, C. Abazov, V. M. Abbott, B. Abdesselam, A. Abolins, M. Abramov, V. Acharya, B. S.
Baringer, Philip S.
Bean, Alice
Coppage, Don
Hebert, C.
Abazov, V. M.
Abbott, B.
Abdesselam, A.
Abolins, M.
Abramov, V.
Acharya, B. S.
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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.
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This is the publisher's version, also available electronically from http://journals.aps.org/prd/abstract/10.1103/PhysRevD.70.092008.
Date
2004-11-17
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American Physical Society
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Baringer_11-17-2004.pdf
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V. M. Abazov et al. (CDF Collaboration, D0 Collaboration, Tevatron Electroweak Working Group). (2004). "Combination of CDF and D0 results on the W boson mass and width." Physical Review D, 70(9):092008. http://dx.doi.org/10.1103/PhysRevD.70.092008