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Free accessOther version: http://journals.aps.org/prd/abstract/10.1103/PhysRevD.87.031104
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Titles listMeasurement of W-boson polarization in top-quark decay using the full CDF Run II data set
Titles listMeasurement of W-boson polarization in top-quark decay using the full CDF Run II data set
Scientific Article
unige:38872 
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Measurement of W-boson polarization in top-quark decay using the full CDF Run II data set |
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| Collaboration | With : Clark, Allan Geoffrey / Wu, Xin | |
| Published in | . 2013, vol. 87, no. 03, p. 031104 | |
| Abstract | We measure the polarization of W bosons from top-quark (t) decays into final states with a charged lepton and jets, tt→W+bW−b→ℓνbqq′b, using the full Run II data set collected by the CDF II detector, corresponding to an integrated luminosity of 8.7 fb−1. A model-independent method simultaneously determines the fraction of longitudinal (f0) and right-handed (f+) W bosons to yield f0=0.726±0.066(stat)±0.067(syst) and f+=−0.045±0.044(stat)±0.058(syst) with a correlation coefficient of −0.69. Additional results are presented under various standard model assumptions. No significant discrepancies with the standard model are observed. | |
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Article (Published version) (225 Kb) - Free access Other version: http://journals.aps.org/prd/abstract/10.1103/PhysRevD.87.031104 |
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| Structures | ||
| Citation (ISO format) | CDF COLLABORATION. Measurement of W-boson polarization in top-quark decay using the full CDF Run II data set. In: Physical Review. D, 2013, vol. 87, n° 03, p. 031104. doi: 10.1103/PhysRevD.87.031104 https://archive-ouverte.unige.ch/unige:38872 |
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