Measurement of the helicity of W bosons in top quark decays
Publication
, Journal Article
Ukegawa, F; Valls, J; Vejcik, S; Velev, G; Vidal, R; Vilar, R; Vologouev, I; Vucinic, D; Wagner, RG; Wagner, RL; Wahl, J; Wallace, NB ...
Published in: Physical review letters
January 2000
We use the transverse momentum spectrum of leptons in the decay chain t-->bW with W-->lnu to measure the helicity of the W bosons in the top quark rest frame. Our measurement uses a t&tmacr; sample isolated in 106+/-4 pb(-1) of data collected in p&pmacr; collisions at sqrt[s] = 1.8 TeV with the CDF detector at the Fermilab Tevatron. Assuming a standard V-A weak decay, we find that the fraction of W's with zero helicity in the top rest frame is F0 = 0.91+/-0. 37(stat)+/-0.13(syst), consistent with the standard model prediction of F0 = 0.70 for a top mass of 175 GeV/c(2).
Duke Scholars
Published In
Physical review letters
DOI
EISSN
1079-7114
ISSN
0031-9007
Publication Date
January 2000
Volume
84
Issue
2
Start / End Page
216 / 221
Related Subject Headings
- General Physics
- 51 Physical sciences
- 49 Mathematical sciences
- 40 Engineering
- 09 Engineering
- 02 Physical Sciences
- 01 Mathematical Sciences
Citation
APA
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MLA
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Ukegawa, F., Valls, J., Vejcik, S., Velev, G., Vidal, R., Vilar, R., … Winer, B. L. (2000). Measurement of the helicity of W bosons in top quark decays. Physical Review Letters, 84(2), 216–221. https://doi.org/10.1103/physrevlett.84.216
Ukegawa, F., J. Valls, S. Vejcik, G. Velev, R. Vidal, R. Vilar, I. Vologouev, et al. “Measurement of the helicity of W bosons in top quark decays.” Physical Review Letters 84, no. 2 (January 2000): 216–21. https://doi.org/10.1103/physrevlett.84.216.
Ukegawa F, Valls J, Vejcik S, Velev G, Vidal R, Vilar R, et al. Measurement of the helicity of W bosons in top quark decays. Physical review letters. 2000 Jan;84(2):216–21.
Ukegawa, F., et al. “Measurement of the helicity of W bosons in top quark decays.” Physical Review Letters, vol. 84, no. 2, Jan. 2000, pp. 216–21. Epmc, doi:10.1103/physrevlett.84.216.
Ukegawa F, Valls J, Vejcik S, Velev G, Vidal R, Vilar R, Vologouev I, Vucinic D, Wagner RG, Wagner RL, Wahl J, Wallace NB, Walsh AM, Wang C, Wang CH, Wang MJ, Watanabe T, Watts T, Webb R, Wenzel H, Wester WC, Wicklund AB, Wicklund E, Williams HH, Wilson P, Winer BL. Measurement of the helicity of W bosons in top quark decays. Physical review letters. 2000 Jan;84(2):216–221.
Published In
Physical review letters
DOI
EISSN
1079-7114
ISSN
0031-9007
Publication Date
January 2000
Volume
84
Issue
2
Start / End Page
216 / 221
Related Subject Headings
- General Physics
- 51 Physical sciences
- 49 Mathematical sciences
- 40 Engineering
- 09 Engineering
- 02 Physical Sciences
- 01 Mathematical Sciences