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 M W = 80.456 ± 0.059 GeV. We also report the Tevatron collider average of the directly measured W boson width T 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 T 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 Γ(W → eν) = 224 ± 13 MeV.

Combination of CDF and D0 results on the W boson mass and width / Abazov, V.m., Abbott, B., Abdesselam, A., Abolins, M., Abramov, V., Acharya, B.s., Acosta, D., Adams, D.l., Adams, M., Affolder, T., Ahmed, S.n., Akimoto, H., Akopian, A., Albrow, M.g., Alexeev, G.d., Alton, A., Alves, G.a., Amaral, P., Ambrose, D., Amendolia, S.r., et al.. - In: PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY. - ISSN 1550-7998. - 70:9(2004), pp. 92008-1-092008-17. [10.1103/physrevd.70.092008]

Combination of CDF and D0 results on the W boson mass and width

DE CECCO, Sandro;DIONISI, Carlo;GIAGU, Stefano;
2004

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 M W = 80.456 ± 0.059 GeV. We also report the Tevatron collider average of the directly measured W boson width T 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 T 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 Γ(W → eν) = 224 ± 13 MeV.
2004
01 Pubblicazione su rivista::01a Articolo in rivista
Combination of CDF and D0 results on the W boson mass and width / Abazov, V.m., Abbott, B., Abdesselam, A., Abolins, M., Abramov, V., Acharya, B.s., Acosta, D., Adams, D.l., Adams, M., Affolder, T., Ahmed, S.n., Akimoto, H., Akopian, A., Albrow, M.g., Alexeev, G.d., Alton, A., Alves, G.a., Amaral, P., Ambrose, D., Amendolia, S.r., et al.. - In: PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY. - ISSN 1550-7998. - 70:9(2004), pp. 92008-1-092008-17. [10.1103/physrevd.70.092008]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/34528
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