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

Publication ,  Journal Article
Aaltonen, T; Amerio, S; Amidei, D; Anastassov, A; Annovi, A; Antos, J; Apollinari, G; Appel, JA; Arisawa, T; Artikov, A; Asaadi, J; Azfar, F ...
Published in: Physical Review D - Particles, Fields, Gravitation and Cosmology
February 21, 2013

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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Published In

Physical Review D - Particles, Fields, Gravitation and Cosmology

DOI

EISSN

1550-2368

ISSN

1550-7998

Publication Date

February 21, 2013

Volume

87

Issue

3

Related Subject Headings

  • Nuclear & Particles Physics
  • 5107 Particle and high energy physics
  • 5101 Astronomical sciences
  • 4902 Mathematical physics
  • 0206 Quantum Physics
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
  • 0201 Astronomical and Space Sciences
 

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Aaltonen, T., Amerio, S., Amidei, D., Anastassov, A., Annovi, A., Antos, J., … Elagin, A. (2013). Measurement of W-boson polarization in top-quark decay using the full CDF Run II data set. Physical Review D - Particles, Fields, Gravitation and Cosmology, 87(3). https://doi.org/10.1103/PhysRevD.87.031104
Aaltonen, T., S. Amerio, D. Amidei, A. Anastassov, A. Annovi, J. Antos, G. Apollinari, et al. “Measurement of W-boson polarization in top-quark decay using the full CDF Run II data set.” Physical Review D - Particles, Fields, Gravitation and Cosmology 87, no. 3 (February 21, 2013). https://doi.org/10.1103/PhysRevD.87.031104.
Aaltonen T, Amerio S, Amidei D, Anastassov A, Annovi A, Antos J, et al. Measurement of W-boson polarization in top-quark decay using the full CDF Run II data set. Physical Review D - Particles, Fields, Gravitation and Cosmology. 2013 Feb 21;87(3).
Aaltonen, T., et al. “Measurement of W-boson polarization in top-quark decay using the full CDF Run II data set.” Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 87, no. 3, Feb. 2013. Scopus, doi:10.1103/PhysRevD.87.031104.
Aaltonen T, Amerio S, Amidei D, Anastassov A, Annovi A, Antos J, Apollinari G, Appel JA, Arisawa T, Artikov A, Asaadi J, Ashmanskas W, Auerbach B, Aurisano A, Azfar F, Badgett W, Bae T, Barbaro-Galtieri A, Barnes VE, Barnett BA, Barria P, Bartos P, Bauce M, Bedeschi F, Behari S, Bellettini G, Bellinger J, Benjamin D, Beretvas A, Bhatti A, Bland KR, Blumenfeld B, Bocci A, Bodek A, Bortoletto D, Boudreau J, Boveia A, Brigliadori L, Bromberg C, Brucken E, Budagov J, Budd HS, Burkett K, Busetto G, Bussey P, Butti P, Buzatu A, Calamba A, Camarda S, Campanelli M, Canelli F, Carls B, Carlsmith D, Carosi R, Carrillo S, Casal B, Casarsa M, Castro A, Catastini P, Cauz D, Cavaliere V, Cavalli-Sforza M, Cerri A, Cerrito L, Chen YC, Chertok M, Chiarelli G, Chlachidze G, Cho K, Chokheli D, Ciocci MA, Clark A, Clarke C, Convery ME, Conway J, Corbo M, Cordelli M, Cox CA, Cox DJ, Cremonesi M, Cruz D, Cuevas J, Culbertson R, D’Ascenzo N, Datta M, De Barbaro P, Demortier L, Deninno M, Devoto F, D’Errico M, Di Canto A, Di Ruzza B, Dittmann JR, D’Onofrio M, Donati S, Dorigo M, Driutti A, Ebina K, Edgar R, Elagin A. Measurement of W-boson polarization in top-quark decay using the full CDF Run II data set. Physical Review D - Particles, Fields, Gravitation and Cosmology. 2013 Feb 21;87(3).

Published In

Physical Review D - Particles, Fields, Gravitation and Cosmology

DOI

EISSN

1550-2368

ISSN

1550-7998

Publication Date

February 21, 2013

Volume

87

Issue

3

Related Subject Headings

  • Nuclear & Particles Physics
  • 5107 Particle and high energy physics
  • 5101 Astronomical sciences
  • 4902 Mathematical physics
  • 0206 Quantum Physics
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
  • 0201 Astronomical and Space Sciences