Measurement of W polarisation at LEP

P. Achard; O. Adriani; M. Aguilar-Benitez; J. Alcaraz; G. Alemanni; J. Allaby; A. Aloisio; M. G. Alviggi; H. Anderhub; V. P. Andreev; F. Anselmo; A. Arefiev; T. Azemoon; T. Aziz; P. Bagnaia; A. Bajo; G. Baksay; L. Baksay; S. V. Baldew; S. Banerjee; S. W. Banerjee; A. Barczyk; R. Barillère; P. Bartalini; M. Basile; N. Batalova; R. Battiston; A. Bay; F. Becattini; U. Becker; F. Behner; L. Bellucci; R. Berbeco; J. Berdugo; P. Berges; B. Bertucci; B. L. Betev; M. Biasini; M. Biglietti; A. Biland; J. J. Blaising; S. C. Blyth; G. J. Bobbink; A. Böhm; L. Boldizsar; B. Borgia; S. Bottai; D. Bourilkov; M. Bourquin; J. Mans; L3 Collaboration

doi:10.1016/S0370-2693(03)00172-2

Measurement of W polarisation at LEP

P. Achard
, O. Adriani
, M. Aguilar-Benitez
, J. Alcaraz
, G. Alemanni
, J. Allaby
, A. Aloisio
, M. G. Alviggi
, H. Anderhub
, V. P. Andreev
, F. Anselmo
, A. Arefiev
, T. Azemoon
, T. Aziz
, P. Bagnaia
, A. Bajo
, G. Baksay
, L. Baksay
, S. V. Baldew
, S. Banerjee

S. W. Banerjee, A. Barczyk, R. Barillère, P. Bartalini, M. Basile, N. Batalova, R. Battiston, A. Bay, F. Becattini, U. Becker, F. Behner, L. Bellucci, R. Berbeco, J. Berdugo, P. Berges, B. Bertucci, B. L. Betev, M. Biasini, M. Biglietti, A. Biland, J. J. Blaising, S. C. Blyth, G. J. Bobbink, A. Böhm, L. Boldizsar, B. Borgia, S. Bottai, D. Bourilkov, M. Bourquin, J. Mans, L3 Collaboration

Physics and Astronomy (Twin Cities)

Research output: Contribution to journal › Article › peer-review

24 Scopus citations

Abstract

The three different helicity states of W bosons produced in the reaction e⁺e^- →W⁺W^-→lνqq^-' at LEP are studied using leptonic and hadronic W decays. Data at centre-of-mass energies √s = 183-209 GeV are used to measure the polarisation of Wbosons, and its dependence on theWboson production angle. The fraction of longitudinally polarisedWbosons is measured to be 0.218 ± 0.027 ± 0.016 where the first uncertainty is statistical and the second systematic, in agreement with the Standard Model expectation.

Original language	English (US)
Pages (from-to)	147-156
Number of pages	10
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	557
Issue number	3-4
DOIs	https://doi.org/10.1016/S0370-2693(03)00172-2
State	Published - Apr 3 2003

Bibliographical note

Publisher Copyright:
© 2003 Published by Elsevier Science.

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10.1016/S0370-2693(03)00172-2

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Achard, P., Adriani, O., Aguilar-Benitez, M., Alcaraz, J., Alemanni, G., Allaby, J., Aloisio, A., Alviggi, M. G., Anderhub, H., Andreev, V. P., Anselmo, F., Arefiev, A., Azemoon, T., Aziz, T., Bagnaia, P., Bajo, A., Baksay, G., Baksay, L., Baldew, S. V., ... L3 Collaboration (2003). Measurement of W polarisation at LEP. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 557(3-4), 147-156. https://doi.org/10.1016/S0370-2693(03)00172-2

Achard, P, Adriani, O, Aguilar-Benitez, M, Alcaraz, J, Alemanni, G, Allaby, J, Aloisio, A, Alviggi, MG, Anderhub, H, Andreev, VP, Anselmo, F, Arefiev, A, Azemoon, T, Aziz, T, Bagnaia, P, Bajo, A, Baksay, G, Baksay, L, Baldew, SV, Banerjee, S, Banerjee, SW, Barczyk, A, Barillère, R, Bartalini, P, Basile, M, Batalova, N, Battiston, R, Bay, A, Becattini, F, Becker, U, Behner, F, Bellucci, L, Berbeco, R, Berdugo, J, Berges, P, Bertucci, B, Betev, BL, Biasini, M, Biglietti, M, Biland, A, Blaising, JJ, Blyth, SC, Bobbink, GJ, Böhm, A, Boldizsar, L, Borgia, B, Bottai, S, Bourilkov, D, Bourquin, M, Mans, J & L3 Collaboration 2003, 'Measurement of W polarisation at LEP', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 557, no. 3-4, pp. 147-156. https://doi.org/10.1016/S0370-2693(03)00172-2

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title = "Measurement of W polarisation at LEP",

abstract = "The three different helicity states of W bosons produced in the reaction e+e- →W+W-→lνqq-' at LEP are studied using leptonic and hadronic W decays. Data at centre-of-mass energies √s = 183-209 GeV are used to measure the polarisation of Wbosons, and its dependence on theWboson production angle. The fraction of longitudinally polarisedWbosons is measured to be 0.218 ± 0.027 ± 0.016 where the first uncertainty is statistical and the second systematic, in agreement with the Standard Model expectation.",

author = "P. Achard and O. Adriani and M. Aguilar-Benitez and J. Alcaraz and G. Alemanni and J. Allaby and A. Aloisio and Alviggi, \{M. G.\} and H. Anderhub and Andreev, \{V. P.\} and F. Anselmo and A. Arefiev and T. Azemoon and T. Aziz and P. Bagnaia and A. Bajo and G. Baksay and L. Baksay and Baldew, \{S. V.\} and S. Banerjee and Banerjee, \{S. W.\} and A. Barczyk and R. Barill{\`e}re and P. Bartalini and M. Basile and N. Batalova and R. Battiston and A. Bay and F. Becattini and U. Becker and F. Behner and L. Bellucci and R. Berbeco and J. Berdugo and P. Berges and B. Bertucci and Betev, \{B. L.\} and M. Biasini and M. Biglietti and A. Biland and Blaising, \{J. J.\} and Blyth, \{S. C.\} and Bobbink, \{G. J.\} and A. B{\"o}hm and L. Boldizsar and B. Borgia and S. Bottai and D. Bourilkov and M. Bourquin and J. Mans and \{L3 Collaboration\}",

note = "Publisher Copyright: {\textcopyright} 2003 Published by Elsevier Science.",

year = "2003",

month = apr,

day = "3",

doi = "10.1016/S0370-2693(03)00172-2",

language = "English (US)",

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T1 - Measurement of W polarisation at LEP

AU - Achard, P.

AU - Adriani, O.

AU - Aguilar-Benitez, M.

AU - Alcaraz, J.

AU - Alemanni, G.

AU - Allaby, J.

AU - Aloisio, A.

AU - Alviggi, M. G.

AU - Anderhub, H.

AU - Andreev, V. P.

AU - Anselmo, F.

AU - Arefiev, A.

AU - Azemoon, T.

AU - Aziz, T.

AU - Bagnaia, P.

AU - Bajo, A.

AU - Baksay, G.

AU - Baksay, L.

AU - Baldew, S. V.

AU - Banerjee, S.

AU - Banerjee, S. W.

AU - Barczyk, A.

AU - Barillère, R.

AU - Bartalini, P.

AU - Basile, M.

AU - Batalova, N.

AU - Battiston, R.

AU - Bay, A.

AU - Becattini, F.

AU - Becker, U.

AU - Behner, F.

AU - Bellucci, L.

AU - Berbeco, R.

AU - Berdugo, J.

AU - Berges, P.

AU - Bertucci, B.

AU - Betev, B. L.

AU - Biasini, M.

AU - Biglietti, M.

AU - Biland, A.

AU - Blaising, J. J.

AU - Blyth, S. C.

AU - Bobbink, G. J.

AU - Böhm, A.

AU - Boldizsar, L.

AU - Borgia, B.

AU - Bottai, S.

AU - Bourilkov, D.

AU - Bourquin, M.

AU - Mans, J.

AU - L3 Collaboration

PY - 2003/4/3

Y1 - 2003/4/3

N2 - The three different helicity states of W bosons produced in the reaction e+e- →W+W-→lνqq-' at LEP are studied using leptonic and hadronic W decays. Data at centre-of-mass energies √s = 183-209 GeV are used to measure the polarisation of Wbosons, and its dependence on theWboson production angle. The fraction of longitudinally polarisedWbosons is measured to be 0.218 ± 0.027 ± 0.016 where the first uncertainty is statistical and the second systematic, in agreement with the Standard Model expectation.

AB - The three different helicity states of W bosons produced in the reaction e+e- →W+W-→lνqq-' at LEP are studied using leptonic and hadronic W decays. Data at centre-of-mass energies √s = 183-209 GeV are used to measure the polarisation of Wbosons, and its dependence on theWboson production angle. The fraction of longitudinally polarisedWbosons is measured to be 0.218 ± 0.027 ± 0.016 where the first uncertainty is statistical and the second systematic, in agreement with the Standard Model expectation.

UR - https://www.scopus.com/pages/publications/0037417186

UR - https://www.scopus.com/pages/publications/0037417186#tab=citedBy

U2 - 10.1016/S0370-2693(03)00172-2

DO - 10.1016/S0370-2693(03)00172-2

M3 - Article

AN - SCOPUS:0037417186

SN - 0370-2693

VL - 557

SP - 147

EP - 156

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 3-4

ER -

Measurement of W polarisation at LEP

Abstract

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