Combination of CDF and D0 measurements of the W boson helicity in top quark decays

E. W. Varnes

Combination of CDF and D0 measurements of the W boson helicity in top quark decays

E. W. Varnes

Physics

Research output: Contribution to journal › Conference article › peer-review

Abstract

I report on the combination of measurements from CDF and D0 of the helicity fractions of W bosons from top quark decays. The result, when both the longitudinal (f₀) and right-handed (f₊) fractions are allowed to float, is f₀ = 0.722 ± 0.081 [± 0.062 (stat.) ± 0.052 (syst.)] and f₊ = -0.033 ± 0.046 [± 0.034 (stat.) ± 0.031 (syst.)], consistent with the Standard Model (SM) expectation. When one fraction is fixed to its SM value the results for the other fraction are f₀ = 0.682 ± 0.057 [± 0.035 (stat.) ± 0.046 (syst.)] and f₊ = -0.015 ± 0.035 [± 0.018 (stat.) ± 0.030 (syst.)].

Original language	English (US)
Journal	Proceedings of Science
Volume	2012-July
State	Published - 2012
Event	36th International Conference on High Energy Physics, ICHEP 2012 - Melbourne, Australia Duration: Jul 4 2012 → Jul 11 2012

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Cite this

@article{2fc588a5d5914838b15e4b26e79c2c7a,

title = "Combination of CDF and D0 measurements of the W boson helicity in top quark decays",

abstract = "I report on the combination of measurements from CDF and D0 of the helicity fractions of W bosons from top quark decays. The result, when both the longitudinal (f0) and right-handed (f+) fractions are allowed to float, is f0 = 0.722 ± 0.081 [± 0.062 (stat.) ± 0.052 (syst.)] and f+ = -0.033 ± 0.046 [± 0.034 (stat.) ± 0.031 (syst.)], consistent with the Standard Model (SM) expectation. When one fraction is fixed to its SM value the results for the other fraction are f0 = 0.682 ± 0.057 [± 0.035 (stat.) ± 0.046 (syst.)] and f+ = -0.015 ± 0.035 [± 0.018 (stat.) ± 0.030 (syst.)].",

author = "Varnes, \{E. W.\}",

note = "Publisher Copyright: {\textcopyright} Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence.; 36th International Conference on High Energy Physics, ICHEP 2012 ; Conference date: 04-07-2012 Through 11-07-2012",

year = "2012",

language = "English (US)",

volume = "2012-July",

journal = "Proceedings of Science",

issn = "1824-8039",

publisher = "Sissa Medialab Srl",

}

TY - JOUR

T1 - Combination of CDF and D0 measurements of the W boson helicity in top quark decays

AU - Varnes, E. W.

N1 - Publisher Copyright: © Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence.

PY - 2012

Y1 - 2012

N2 - I report on the combination of measurements from CDF and D0 of the helicity fractions of W bosons from top quark decays. The result, when both the longitudinal (f0) and right-handed (f+) fractions are allowed to float, is f0 = 0.722 ± 0.081 [± 0.062 (stat.) ± 0.052 (syst.)] and f+ = -0.033 ± 0.046 [± 0.034 (stat.) ± 0.031 (syst.)], consistent with the Standard Model (SM) expectation. When one fraction is fixed to its SM value the results for the other fraction are f0 = 0.682 ± 0.057 [± 0.035 (stat.) ± 0.046 (syst.)] and f+ = -0.015 ± 0.035 [± 0.018 (stat.) ± 0.030 (syst.)].

AB - I report on the combination of measurements from CDF and D0 of the helicity fractions of W bosons from top quark decays. The result, when both the longitudinal (f0) and right-handed (f+) fractions are allowed to float, is f0 = 0.722 ± 0.081 [± 0.062 (stat.) ± 0.052 (syst.)] and f+ = -0.033 ± 0.046 [± 0.034 (stat.) ± 0.031 (syst.)], consistent with the Standard Model (SM) expectation. When one fraction is fixed to its SM value the results for the other fraction are f0 = 0.682 ± 0.057 [± 0.035 (stat.) ± 0.046 (syst.)] and f+ = -0.015 ± 0.035 [± 0.018 (stat.) ± 0.030 (syst.)].

UR - https://www.scopus.com/pages/publications/85052466684

UR - https://www.scopus.com/pages/publications/85052466684#tab=citedBy

M3 - Conference article

AN - SCOPUS:85052466684

SN - 1824-8039

VL - 2012-July

JO - Proceedings of Science

JF - Proceedings of Science

T2 - 36th International Conference on High Energy Physics, ICHEP 2012

Y2 - 4 July 2012 through 11 July 2012

ER -

Combination of CDF and D0 measurements of the W boson helicity in top quark decays

Abstract

ASJC Scopus subject areas

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