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Combination of CDF and D0 Results on W Boson Mass and Width | | V. M. Abazov
; et al
; | | Date: |
18 Nov 2003 | | Journal: | Phys.Rev. D70 (2004) 092008 | | Subject: | hep-ex | | Abstract: | The results based on 1992-95 data (Run 1) from the CDF and DO experiments on the measurements of the W boson mass and width are presented, along with the combined results. We report a Tevatron collider average M_W = 80.456 +- 0.059 GeV. We also report the Tevatron collider average of the directly measured W boson width Gamma_W = 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 Gamma_W = 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 Gamma(W -> e nu) = 224 +- 13 MeV. | | Source: | arXiv, hep-ex/0311039 | | Services: | Forum | Review | PDF | Favorites | |
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