Combination of CDF and D0 measurements of the W boson helicity in top quark decays
We report the combination of recent measurements of the helicity of the W boson from top quark decay by the CDF and D0 collaborations, based on data samples corresponding to integrated luminosities of 2.7 - 5.4 fb^-1 of ppbar collisions collected during Run II of the Fermilab Tevatron Collider. Comb...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
2012
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| _version_ | 1797099401760473088 |
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| author | Cdf, T Collaborations, D Aaltonen, T Abazov, V Abbott, B Acharya, B Adams, M Adams, T Alexeev, G Alkhazov, G Alton, A González, B Alverson, G Amerio, S Amidei, D Anastassov, A Annovi, A Antos, J Aoki, M Apollinari, G Appel, J Arisawa, T Artikov, A Asaadi, J Ashmanskas, W |
| author_facet | Cdf, T Collaborations, D Aaltonen, T Abazov, V Abbott, B Acharya, B Adams, M Adams, T Alexeev, G Alkhazov, G Alton, A González, B Alverson, G Amerio, S Amidei, D Anastassov, A Annovi, A Antos, J Aoki, M Apollinari, G Appel, J Arisawa, T Artikov, A Asaadi, J Ashmanskas, W |
| author_sort | Cdf, T |
| collection | OXFORD |
| description | We report the combination of recent measurements of the helicity of the W boson from top quark decay by the CDF and D0 collaborations, based on data samples corresponding to integrated luminosities of 2.7 - 5.4 fb^-1 of ppbar collisions collected during Run II of the Fermilab Tevatron Collider. Combining measurements that simultaneously determine the fractions of W bosons with longitudinal (f0) and right-handed (f+) helicities, we find f0 = 0.722 \pm 0.081 [\pm 0.062 (stat.) \pm 0.052 (syst.)] and f+ = -0.033 \pm 0.046 [\pm 0.034 (stat.) \pm 0.031 (syst.)]. Combining measurements where one of the helicity fractions is fixed to the value expected in the standard model, we find f0 = 0.682 \pm 0.057 [\pm 0.035 (stat.) \pm 0.046 (syst.)] and f+ = -0.015\pm0.035 [\pm 0.018 (stat.) \pm 0.030 (syst.)]. The results are consistent with standard model expectations. |
| first_indexed | 2024-03-07T05:23:11Z |
| format | Journal article |
| id | oxford-uuid:dfa2657b-fcdf-4cb0-b69f-c99463babce1 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T05:23:11Z |
| publishDate | 2012 |
| record_format | dspace |
| spelling | oxford-uuid:dfa2657b-fcdf-4cb0-b69f-c99463babce12022-03-27T09:40:55ZCombination of CDF and D0 measurements of the W boson helicity in top quark decaysJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:dfa2657b-fcdf-4cb0-b69f-c99463babce1EnglishSymplectic Elements at Oxford2012Cdf, TCollaborations, DAaltonen, TAbazov, VAbbott, BAcharya, BAdams, MAdams, TAlexeev, GAlkhazov, GAlton, AGonzález, BAlverson, GAmerio, SAmidei, DAnastassov, AAnnovi, AAntos, JAoki, MApollinari, GAppel, JArisawa, TArtikov, AAsaadi, JAshmanskas, WWe report the combination of recent measurements of the helicity of the W boson from top quark decay by the CDF and D0 collaborations, based on data samples corresponding to integrated luminosities of 2.7 - 5.4 fb^-1 of ppbar collisions collected during Run II of the Fermilab Tevatron Collider. Combining measurements that simultaneously determine the fractions of W bosons with longitudinal (f0) and right-handed (f+) helicities, we find f0 = 0.722 \pm 0.081 [\pm 0.062 (stat.) \pm 0.052 (syst.)] and f+ = -0.033 \pm 0.046 [\pm 0.034 (stat.) \pm 0.031 (syst.)]. Combining measurements where one of the helicity fractions is fixed to the value expected in the standard model, we find f0 = 0.682 \pm 0.057 [\pm 0.035 (stat.) \pm 0.046 (syst.)] and f+ = -0.015\pm0.035 [\pm 0.018 (stat.) \pm 0.030 (syst.)]. The results are consistent with standard model expectations. |
| spellingShingle | Cdf, T Collaborations, D Aaltonen, T Abazov, V Abbott, B Acharya, B Adams, M Adams, T Alexeev, G Alkhazov, G Alton, A González, B Alverson, G Amerio, S Amidei, D Anastassov, A Annovi, A Antos, J Aoki, M Apollinari, G Appel, J Arisawa, T Artikov, A Asaadi, J Ashmanskas, W Combination of CDF and D0 measurements of the W boson helicity in top quark decays |
| title | Combination of CDF and D0 measurements of the W boson helicity in top
quark decays |
| title_full | Combination of CDF and D0 measurements of the W boson helicity in top
quark decays |
| title_fullStr | Combination of CDF and D0 measurements of the W boson helicity in top
quark decays |
| title_full_unstemmed | Combination of CDF and D0 measurements of the W boson helicity in top
quark decays |
| title_short | Combination of CDF and D0 measurements of the W boson helicity in top
quark decays |
| title_sort | combination of cdf and d0 measurements of the w boson helicity in top quark decays |
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