W-boson polarization measurement in the tt- dilepton channel using the CDF II detector
Publication
, Journal Article
Aaltonen, T; Álvarez González, B; Amerio, S; Amidei, D; Anastassov, A; Annovi, A; Antos, J; Apollinari, G; Appel, JA; Arisawa, T; Artikov, A ...
Published in: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
May 13, 2013
We present a measurement of the W-boson polarization in top-quark decays in tt- events with decays to dilepton final states using data corresponding to 5.1 fb-1 of integrated luminosity in pp- collisions collected by the CDF II detector at the Tevatron. Assuming a top-quark mass of 172.5 GeV/c2, a simultaneous measurement of the fractions of longitudinal ( f0) and right-handed ( f+) W-bosons yields the results f0 = 0.70-0.17+0.18 (stat) ± 0.06(syst) and f+ =-0.09 ± 0.09(stat) ± 0.03(syst). Combining this measurement with our previous measurement based on single-lepton final states, we obtain f0 = 0.84 ± 0.09(stat) ± 0.05(syst) and f+ =-0.16 ± 0.05(stat) ± 0.04(syst). The results are consistent with the standard model expectation.
Duke Scholars
Published In
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
DOI
ISSN
0370-2693
Publication Date
May 13, 2013
Volume
722
Issue
1-3
Start / End Page
48 / 54
Related Subject Headings
- Nuclear & Particles Physics
- 51 Physical sciences
- 49 Mathematical sciences
- 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
- 0201 Astronomical and Space Sciences
- 0105 Mathematical Physics
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Aaltonen, T., Álvarez González, B., Amerio, S., Amidei, D., Anastassov, A., Annovi, A., … D’Errico, M. (2013). W-boson polarization measurement in the tt- dilepton channel using the CDF II detector. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 722(1–3), 48–54. https://doi.org/10.1016/j.physletb.2013.03.032
Aaltonen, T., B. Álvarez González, S. Amerio, D. Amidei, A. Anastassov, A. Annovi, J. Antos, et al. “W-boson polarization measurement in the tt- dilepton channel using the CDF II detector.” Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 722, no. 1–3 (May 13, 2013): 48–54. https://doi.org/10.1016/j.physletb.2013.03.032.
Aaltonen T, Álvarez González B, Amerio S, Amidei D, Anastassov A, Annovi A, et al. W-boson polarization measurement in the tt- dilepton channel using the CDF II detector. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. 2013 May 13;722(1–3):48–54.
Aaltonen, T., et al. “W-boson polarization measurement in the tt- dilepton channel using the CDF II detector.” Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 722, no. 1–3, May 2013, pp. 48–54. Scopus, doi:10.1016/j.physletb.2013.03.032.
Aaltonen T, Álvarez González B, 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, Bisello D, Bizjak I, 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, Buzatu A, Calamba A, Calancha C, Camarda S, Campanelli M, Campbell M, Canelli F, Carls B, Carlsmith D, Carosi R, Carrillo S, Carron 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, Chlebana F, Cho K, Chokheli D, Chung WH, Chung YS, Ciocci MA, Clark A, Clarke C, Compostella G, Convery ME, Conway J, Corbo M, Cordelli M, Cox CA, Cox DJ, Crescioli F, Cuevas J, Culbertson R, Dagenhart D, D’Ascenzo N, Datta M, De Barbaro P, Dell’Orso M, Demortier L, Deninno M, Devoto F, D’Errico M. W-boson polarization measurement in the tt- dilepton channel using the CDF II detector. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. 2013 May 13;722(1–3):48–54.
Published In
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
DOI
ISSN
0370-2693
Publication Date
May 13, 2013
Volume
722
Issue
1-3
Start / End Page
48 / 54
Related Subject Headings
- Nuclear & Particles Physics
- 51 Physical sciences
- 49 Mathematical sciences
- 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
- 0201 Astronomical and Space Sciences
- 0105 Mathematical Physics