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|a Gomez-Ceballos, Guillelmo
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|a Massachusetts Institute of Technology. Department of Physics
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|a Massachusetts Institute of Technology. Laboratory for Nuclear Science
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|a Gomez-Ceballos, Guillelmo
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|a Goncharov, Maxim
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|a Paus, Christoph M. E.
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|a Goncharov, Maxim
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|a Paus, Christoph M. E.
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|a Measurement of W-boson polarization in top-quark decay using the full CDF Run II data set
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|b American Physical Society,
|c 2013-04-25T15:06:54Z.
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|z Get fulltext
|u http://hdl.handle.net/1721.1/78600
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|a We measure the polarization of W bosons from top-quark (t) decays into final states with a charged lepton and jets, tt̅→W[superscript +]bW[superscript -]b̅→ℓνbqq̅'b̅, using the full Run II data set collected by the CDF II detector, corresponding to an integrated luminosity of 8.7 fb[superscript -1]. A model-independent method simultaneously determines the fraction of longitudinal (f[subscript 0]) and right-handed (f[subscript +]) W bosons to yield f[subscript 0]=0.726±0.066(stat)±0.067(syst) and f[subscript +]=-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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|a Article
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|t Physical Review D
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