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, 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]...
| Main Authors: | , , |
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| Other Authors: | |
| Format: | Article |
| Language: | en_US |
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American Physical Society
2013
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| Online Access: | http://hdl.handle.net/1721.1/78600 https://orcid.org/0000-0002-6047-4211 |
| _version_ | 1826213417851027456 |
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| author | Gomez-Ceballos, Guillelmo Goncharov, Maxim Paus, Christoph M. E. |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Gomez-Ceballos, Guillelmo Goncharov, Maxim Paus, Christoph M. E. |
| author_sort | Gomez-Ceballos, Guillelmo |
| collection | MIT |
| description | 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. |
| first_indexed | 2024-09-23T15:48:46Z |
| format | Article |
| id | mit-1721.1/78600 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T15:48:46Z |
| publishDate | 2013 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/786002022-10-02T04:15:55Z Measurement of W-boson polarization in top-quark decay using the full CDF Run II data set Gomez-Ceballos, Guillelmo Goncharov, Maxim Paus, Christoph M. E. Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Laboratory for Nuclear Science Gomez-Ceballos, Guillelmo Goncharov, Maxim Paus, Christoph M. E. 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. 2013-04-25T15:06:54Z 2013-04-25T15:06:54Z 2013-02 2012-11 Article http://purl.org/eprint/type/JournalArticle 1550-7998 1089-4918 http://hdl.handle.net/1721.1/78600 Aaltonen, T. et al. “Measurement of W-boson Polarization in Top-quark Decay Using the Full CDF Run II Data Set.” Physical Review D 87.3 (2013). ©2013 American Physical Society https://orcid.org/0000-0002-6047-4211 en_US http://dx.doi.org/10.1103/PhysRevD.87.031104 Physical Review D Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Physical Society APS |
| spellingShingle | Gomez-Ceballos, Guillelmo Goncharov, Maxim Paus, Christoph M. E. 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 |
| url | http://hdl.handle.net/1721.1/78600 https://orcid.org/0000-0002-6047-4211 |
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