Article (Published version) (192 Kb) - 
Free accessOther version: http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.100.071801
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unige:38491 
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Direct Measurement of the W Boson Width in pp Collisions at s√=1.96 TeV |
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| Collaboration | With : Clark, Allan Geoffrey / Hamilton, Andrew / Lefevre, Régis / Sfyrla, Anna / Shreyber, Irina / Vallecorsa, Sofia / Wu, Xin | |
| Published in | Physical Review Letters. 2008, vol. 100, no. 07, p. 071801 | |
| Abstract | A direct measurement of the total decay width of the W boson ΓW is presented using 350 pb−1 of data from pp¯ collisions at s√=1.96 TeV collected with the CDF II detector at the Fermilab Tevatron. The width is determined by normalizing predicted signal and background distributions to 230 185 W candidates decaying to eν and μν in the transverse-mass region 50<MT<90 GeV and then fitting the predicted shape to 6055 events in the high-MT region, 90<MT<200 GeV. The result is ΓW=2032±45stat±57syst MeV, consistent with the standard model expectation. | |
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Article (Published version) (192 Kb) - Free access Other version: http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.100.071801 |
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| Structures | ||
| Citation (ISO format) | CDF COLLABORATION. Direct Measurement of the W Boson Width in pp Collisions at s√=1.96 TeV. In: Physical Review Letters, 2008, vol. 100, n° 07, p. 071801. doi: 10.1103/PhysRevLett.100.071801 https://archive-ouverte.unige.ch/unige:38491 |
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