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.

T. AALTONEN, B.ALVAREZ GONZALEZV, S. AMERIO, D. AMIDEI, A. ANASTASSOV, A. ANNOVI, et al. (2004). Combination of CDF and D0 results on the W boson mass and width. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 70, 092008-1-092008-17 [10.1103/PhysRevD.70.092008].

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

BRIGLIADORI, LUCA;CASTRO, ANDREA;J. GALYARDT;MOGGI, NICCOLO';MUSSINI, MANUEL;ZUCCHELLI, 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 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.
2004
T. AALTONEN, B.ALVAREZ GONZALEZV, S. AMERIO, D. AMIDEI, A. ANASTASSOV, A. ANNOVI, et al. (2004). Combination of CDF and D0 results on the W boson mass and width. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 70, 092008-1-092008-17 [10.1103/PhysRevD.70.092008].
T. AALTONEN; B.ALVAREZ GONZALEZV; S. AMERIO; D. AMIDEI; A. ANASTASSOV; A. ANNOVI; J. ANTOS; G. APOLLINARI; J.A. APPEL; A. APRESYAN; T. ARISAWA; A. ART...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/130346
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