Measurement of W-boson polarization in top-quark decay using the full CDF Run II data set

We measure the polarization of W bosons from top-quark (t) decays into final states with a charged lepton and jets, tt̄→W+bW -b̄→ℓνbqq̄′b̄, 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 simultaneousl...

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Main Authors: Aaltonen, T, Amerio, S, Amidei, D, Anastassov, A, Annovi, A, Antos, J, Apollinari, G, Appel, J, Arisawa, T, Artikov, A, Asaadi, J, Ashmanskas, W, Auerbach, B, Aurisano, A, Azfar, F, Badgett, W, Bae, T, Barbaro-Galtieri, A, Barnes, V, Barnett, B, Barria, P, Bartos, P, Bauce, M, Bedeschi, F, Behari, S
Format: Journal article
Language:English
Published: 2013
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author Aaltonen, T
Amerio, S
Amidei, D
Anastassov, A
Annovi, A
Antos, J
Apollinari, G
Appel, J
Arisawa, T
Artikov, A
Asaadi, J
Ashmanskas, W
Auerbach, B
Aurisano, A
Azfar, F
Badgett, W
Bae, T
Barbaro-Galtieri, A
Barnes, V
Barnett, B
Barria, P
Bartos, P
Bauce, M
Bedeschi, F
Behari, S
author_facet Aaltonen, T
Amerio, S
Amidei, D
Anastassov, A
Annovi, A
Antos, J
Apollinari, G
Appel, J
Arisawa, T
Artikov, A
Asaadi, J
Ashmanskas, W
Auerbach, B
Aurisano, A
Azfar, F
Badgett, W
Bae, T
Barbaro-Galtieri, A
Barnes, V
Barnett, B
Barria, P
Bartos, P
Bauce, M
Bedeschi, F
Behari, S
author_sort Aaltonen, T
collection OXFORD
description We measure the polarization of W bosons from top-quark (t) decays into final states with a charged lepton and jets, tt̄→W+bW -b̄→ℓνbqq̄′b̄, 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. © 2013 American Physical Society.
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spelling oxford-uuid:2463b0f5-5eda-472a-9dad-d7f5edbe5b312022-03-26T11:49:47ZMeasurement of W-boson polarization in top-quark decay using the full CDF Run II data setJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:2463b0f5-5eda-472a-9dad-d7f5edbe5b31EnglishSymplectic Elements at Oxford2013Aaltonen, TAmerio, SAmidei, DAnastassov, AAnnovi, AAntos, JApollinari, GAppel, JArisawa, TArtikov, AAsaadi, JAshmanskas, WAuerbach, BAurisano, AAzfar, FBadgett, WBae, TBarbaro-Galtieri, ABarnes, VBarnett, BBarria, PBartos, PBauce, MBedeschi, FBehari, SWe measure the polarization of W bosons from top-quark (t) decays into final states with a charged lepton and jets, tt̄→W+bW -b̄→ℓνbqq̄′b̄, 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. © 2013 American Physical Society.
spellingShingle Aaltonen, T
Amerio, S
Amidei, D
Anastassov, A
Annovi, A
Antos, J
Apollinari, G
Appel, J
Arisawa, T
Artikov, A
Asaadi, J
Ashmanskas, W
Auerbach, B
Aurisano, A
Azfar, F
Badgett, W
Bae, T
Barbaro-Galtieri, A
Barnes, V
Barnett, B
Barria, P
Bartos, P
Bauce, M
Bedeschi, F
Behari, S
Measurement of W-boson polarization in top-quark decay using the full CDF Run II data set
title Measurement of W-boson polarization in top-quark decay using the full CDF Run II data set
title_full Measurement of W-boson polarization in top-quark decay using the full CDF Run II data set
title_fullStr Measurement of W-boson polarization in top-quark decay using the full CDF Run II data set
title_full_unstemmed Measurement of W-boson polarization in top-quark decay using the full CDF Run II data set
title_short Measurement of W-boson polarization in top-quark decay using the full CDF Run II data set
title_sort measurement of w boson polarization in top quark decay using the full cdf run ii data set
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