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

Publication ,  Journal Article
Aaltonen, T; Abazov, VM; Abbott, B; Acharya, BS; Adams, M; Adams, T; Alexeev, GD; Alkhazov, G; Alton, A; Alvarez González, B; Alverson, G ...
Published in: Physical Review D Particles Fields Gravitation and Cosmology
April 27, 2012
Published version (DOI)

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 2.7-5.4fb -1 of pp̄ collisions collected during Run II of the Fermilab Tevatron collider. Combining measurements that simultaneously determine the fractions of W bosons with longitudinal (f 0) and right-handed (f +) helicities, we find f 0=0.722±0.081[±0.062(stat)±0.052(syst)] and f +=-0.033±0.046[±0.034(stat)±0.031(syst)]. Combining measurements where one of the helicity fractions is fixed to the value expected in the standard model, we find f 0=0.682±0. 057[±0.035(stat)±0.046(syst)] for fixed f + and f +=-0.015±0.035[±0.018(stat)±0.030(syst)] for fixed f 0. The results are consistent with standard model expectations. © 2012 American Physical Society.

Duke Scholars

Alfred T. Goshaw
Author Alfred T. Goshaw Physics
Ashutosh V. Kotwal
Author Ashutosh V. Kotwal Physics
Mark C. Kruse
Author Mark C. Kruse Physics
Seog Oh
Author Seog Oh Physics
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Published In

Physical Review D Particles Fields Gravitation and Cosmology

DOI

10.1103/PhysRevD.85.071106

EISSN

1550-2368

ISSN

1550-7998

Publication Date

April 27, 2012

Volume

85

Issue

7

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
 

Citation

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MLA
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Aaltonen, T., Abazov, V. M., Abbott, B., Acharya, B. S., Adams, M., Adams, T., … Bu, X. B. (2012). Combination of CDF and D0 measurements of the W boson helicity in top quark decays. Physical Review D Particles Fields Gravitation and Cosmology, 85(7). https://doi.org/10.1103/PhysRevD.85.071106
Aaltonen, T., V. M. Abazov, B. Abbott, B. S. Acharya, M. Adams, T. Adams, G. D. Alexeev, et al. “Combination of CDF and D0 measurements of the W boson helicity in top quark decays.” Physical Review D Particles Fields Gravitation and Cosmology 85, no. 7 (April 27, 2012). https://doi.org/10.1103/PhysRevD.85.071106.
Aaltonen T, Abazov VM, Abbott B, Acharya BS, Adams M, Adams T, et al. Combination of CDF and D0 measurements of the W boson helicity in top quark decays. Physical Review D Particles Fields Gravitation and Cosmology. 2012 Apr 27;85(7).
Aaltonen, T., et al. “Combination of CDF and D0 measurements of the W boson helicity in top quark decays.” Physical Review D Particles Fields Gravitation and Cosmology, vol. 85, no. 7, Apr. 2012. Scopus, doi:10.1103/PhysRevD.85.071106.
Aaltonen T, Abazov VM, Abbott B, Acharya BS, Adams M, Adams T, Alexeev GD, Alkhazov G, Alton A, Alvarez González B, Alverson G, Amerio S, Amidei D, Anastassov A, Annovi A, Antos J, Aoki M, Apollinari G, Appel JA, Arisawa T, Artikov A, Asaadi J, Ashmanskas W, Askew A, Asman B, Atkins S, Atramentov O, Auerbach B, Augsten K, Aurisano A, Avila C, Azfar F, Badaud F, Badgett W, Bae T, Bagby L, Baldin B, Bandurin DV, Banerjee S, Barbaro-Galtieri A, Barberis E, Baringer P, Barnes VE, Barnett BA, Barreto J, Barria P, Bartlett JF, Bartos P, Bassler U, Bauce M, Bazterra V, Bean A, Bedeschi F, Begalli M, Behari S, Belanger-Champagne C, Bellantoni L, Bellettini G, Bellinger J, Benjamin D, Beretvas A, Beri SB, Bernardi G, Bernhard R, Bertram I, Besançon M, Beuselinck R, Bezzubov VA, Bhatia S, Bhatnagar V, Bhatti A, Bhat PC, Bisello D, Bizjak I, Bland KR, Blazey G, Blessing S, Bloom K, Blumenfeld B, Bocci A, Bodek A, Boehnlein A, Boline D, Boos EE, Borissov G, Bortoletto D, Bose T, Boudreau J, Boveia A, Brandt A, Brandt O, Brigliadori L, Brock R, Bromberg C, Brooijmans G, Bross A, Brown D, Brown J, Brucken E, Bu XB. Combination of CDF and D0 measurements of the W boson helicity in top quark decays. Physical Review D Particles Fields Gravitation and Cosmology. 2012 Apr 27;85(7).

Published In

Physical Review D Particles Fields Gravitation and Cosmology

DOI

10.1103/PhysRevD.85.071106

EISSN

1550-2368

ISSN

1550-7998

Publication Date

April 27, 2012

Volume

85

Issue

7

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