Measurement of W boson polarisations and CP-violating triple gauge couplings from W+W- production at LEP

G. Abbiendi; K. Ackerstaff; C. Ainsley; P. F. Åkesson; G. Alexander; J. Allison; K. J. Anderson; S. Arcelli; S. Asai; S. F. Ashby; D. Axen; G. Azuelos; I. Bailey; A. H. Ball; E. Barberio; R. J. Barlow; S. Baumann; T. Behnke; K. W. Bell; G. Bella; A. Bellerive; G. Benelli; S. Bentvelsen; S. Bethke; O. Biebel; I. J. Bloodworth; O. Boeriu; P. Bock; J. Böhme; D. Bonacorsi; M. Boutemeur; S. Braibant; P. Bright-Thomas; L. Brigliadori; R. M. Brown; H. J. Burckhart; J. Cammin; P. Capiluppi; R. K. Carnegie; A. A. Carter; J. R. Carter; C. Y. Chang; D. G. Charlton; P. E.L. Clarke; E. Clay; I. Cohen; O. C. Cooke; J. Couchman; C. Couyoumtzelis; R. L. Coxe; A. Csilling; M. Cuffiani; S. Dado; G. M. Dallavalle; S. Dallison; A. de Roeck; E. de Wolf; P. Dervan; K. Desch; B. Dienes; M. S. Dixit; M. Donkers; J. Dubbert; E. Duchovni; G. Duckeck; I. P. Duerdoth; P. G. Estabrooks; E. Etzion; F. Fabbri; M. Fanti; L. Feld; P. Ferrari; F. Fiedler; I. Fleck; M. Ford; A. Frey; A. Fürtjes; D. I. Futyan; P. Gagnon; J. W. Gary; G. Gaycken; C. Geich-Gimbel; G. Giacomelli; P. Giacomelli; D. Glenzinski; J. Goldberg; C. Grandi; K. Graham; E. Gross; J. Grunhaus; M. Gruwé; P. O. Günther; C. Hajdu; G. G. Hanson; M. Hansroul; M. Hapke; K. Harder; A. Harel; M. Harin-Dirac; A. Hauke; M. Hauschild; C. M. Hawkes; R. Hawkings; R. J. Hemingway; C. Hensel; G. Herten; R. D. Heuer; J. C. Hill; A. Hocker; K. Hoffman; R. J. Homer; A. K. Honma; D. Horváth; K. R. Hossain; R. Howard; P. Hüntemeyer; P. Igo-Kemenes; K. Ishii; F. R. Jacob; A. Jawahery; H. Jeremie; C. R. Jones; P. Jovanovic; T. R. Junk; N. Kanaya; J. Kanzaki; G. Karapetian; D. Karlen; V. Kartvelishvili; K. Kawagoe; T. Kawamoto; R. K. Keeler; R. G. Kellogg; B. W. Kennedy; D. H. Kim; K. Klein; A. Klier; S. Kluth; T. Kobayashi; M. Kobel; T. P. Kokott; S. Komamiya; R. V. Kowalewski; T. Kress; P. Krieger; J. von Krogh; T. Kuhl; M. Kupper; P. Kyberd; G. D. Lafferty; H. Landsman; D. Lanske; I. Lawson; J. G. Layter; A. Leins; D. Lellouch; J. Letts; L. Levinson; R. Liebisch; J. Lillich; B. List; C. Littlewood; A. W. Lloyd; S. L. Lloyd; F. K. Loebinger; G. D. Long; M. J. Losty; J. Lu; J. Ludwig; A. Macchiolo; A. Macpherson; W. Mader; S. Marcellini; T. E. Marchant; A. J. Martin; J. P. Martin; G. Martinez; T. Mashimo; P. Mättig; W. J. McDonald; J. McKenna; T. J. McMahon; R. A. McPherson; F. Meijers; P. Mendez-Lorenzo; W. Menges; F. S. Merritt; H. Mes; A. Michelini; S. Mihara; G. Mikenberg; D. J. Miller; W. Mohr; A. Montanari; T. Mori; K. Nagai; I. Nakamura; H. A. Neal; R. Nisius; S. W. O'Neale; F. G. Oakham; F. Odorici; H. O. Ogren; A. Oh; A. Okpara; M. J. Oreglia; S. Orito; G. Pásztor; J. R. Pater; G. N. Patrick; J. Patt; P. Pfeifenschneider; J. E. Pilcher; J. Pinfold; D. E. Plane; B. Poli; J. Polok; O. Pooth; M. Przybycień; A. Quadt; C. Rembser; P. Renkel; H. Rick; N. Rodning; J. M. Roney; S. Rosati; K. Roscoe; A. M. Rossi; Y. Rozen; K. Runge; O. Runolfsson; D. R. Rust; K. Sachs; T. Saeki; O. Sahr; E. K.G. Sarkisyan; C. Sbarra; A. D. Schaile; O. Schaile; P. Scharff-Hansen; M. Schröder; M. Schumacher; C. Schwick; W. G. Scott; R. Seuster; T. G. Shears; B. C. Shen; C. H. Shepherd-Themistocleous; P. Sherwood; G. P. Siroli; A. Skuja; A. M. Smith; G. A. Snow; R. Sobie; S. Söldner-Rembold; S. Spagnolo; M. Sproston; A. Stahl; K. Stephens; K. Stoll; D. Strom; R. Ströhmer; L. Stumpf; B. Surrow; S. D. Talbot; S. Tarem; R. J. Taylor; R. Teuscher; M. Thiergen; J. Thomas; M. A. Thomson; E. Torrence; S. Towers; D. Toya; T. Trefzger; I. Trigger; Z. Trócsányi; E. Tsur; M. F. Turner-Watson; I. Ueda; B. Vachon; P. Vannerem; M. Verzocchi; H. Voss; J. Vossebeld; D. Waller; C. P. Ward; D. R. Ward; P. M. Watkins; A. T. Watson; N. K. Watson; P. S. Wells; T. Wengler; N. Wermes; D. Wetterling; J. S. White; G. W. Wilson; J. A. Wilson; T. R. Wyatt; S. Yamashita; V. Zacek; D. Zer-Zion

doi:10.1007/s100520100602

Measurement of W boson polarisations and CP-violating triple gauge couplings from W⁺W^- production at LEP

G. Abbiendi, K. Ackerstaff, C. Ainsley, P. F. Åkesson, G. Alexander, J. Allison, K. J. Anderson, S. Arcelli, S. Asai, S. F. Ashby, D. Axen, G. Azuelos, I. Bailey, A. H. Ball, E. Barberio, R. J. Barlow, S. Baumann, T. Behnke, K. W. Bell, G. BellaA. Bellerive, G. Benelli, S. Bentvelsen, S. Bethke, O. Biebel, I. J. Bloodworth, O. Boeriu, P. Bock, J. Böhme, D. Bonacorsi, M. Boutemeur, S. Braibant, P. Bright-Thomas, L. Brigliadori, R. M. Brown, H. J. Burckhart, J. Cammin, P. Capiluppi, R. K. Carnegie, A. A. Carter, J. R. Carter, C. Y. Chang, D. G. Charlton, P. E.L. Clarke, E. Clay, I. Cohen, O. C. Cooke, J. Couchman, C. Couyoumtzelis, R. L. Coxe, A. Csilling, M. Cuffiani, S. Dado, G. M. Dallavalle, S. Dallison, A. de Roeck, E. de Wolf, P. Dervan, K. Desch, B. Dienes, M. S. Dixit, M. Donkers, J. Dubbert, E. Duchovni, G. Duckeck, I. P. Duerdoth, P. G. Estabrooks, E. Etzion, F. Fabbri, M. Fanti, L. Feld, P. Ferrari, F. Fiedler, I. Fleck, M. Ford, A. Frey, A. Fürtjes, D. I. Futyan, P. Gagnon, J. W. Gary, G. Gaycken, C. Geich-Gimbel, G. Giacomelli, P. Giacomelli, D. Glenzinski, J. Goldberg, C. Grandi, K. Graham, E. Gross, J. Grunhaus, M. Gruwé, P. O. Günther, C. Hajdu, G. G. Hanson, M. Hansroul, M. Hapke, K. Harder, A. Harel, M. Harin-Dirac, A. Hauke, M. Hauschild, C. M. Hawkes, R. Hawkings, R. J. Hemingway, C. Hensel, G. Herten, R. D. Heuer, J. C. Hill, A. Hocker, K. Hoffman, R. J. Homer, A. K. Honma, D. Horváth, K. R. Hossain, R. Howard, P. Hüntemeyer, P. Igo-Kemenes, K. Ishii, F. R. Jacob, A. Jawahery, H. Jeremie, C. R. Jones, P. Jovanovic, T. R. Junk, N. Kanaya, J. Kanzaki, G. Karapetian, D. Karlen, V. Kartvelishvili, K. Kawagoe, T. Kawamoto, R. K. Keeler, R. G. Kellogg, B. W. Kennedy, D. H. Kim, K. Klein, A. Klier, S. Kluth, T. Kobayashi, M. Kobel, T. P. Kokott, S. Komamiya, R. V. Kowalewski, T. Kress, P. Krieger, J. von Krogh, T. Kuhl, M. Kupper, P. Kyberd, G. D. Lafferty, H. Landsman, D. Lanske, I. Lawson, J. G. Layter, A. Leins, D. Lellouch, J. Letts, L. Levinson, R. Liebisch, J. Lillich, B. List, C. Littlewood, A. W. Lloyd, S. L. Lloyd, F. K. Loebinger, G. D. Long, M. J. Losty, J. Lu, J. Ludwig, A. Macchiolo, A. Macpherson, W. Mader, S. Marcellini, T. E. Marchant, A. J. Martin, J. P. Martin, G. Martinez, T. Mashimo, P. Mättig, W. J. McDonald, J. McKenna, T. J. McMahon, R. A. McPherson, F. Meijers, P. Mendez-Lorenzo, W. Menges, F. S. Merritt, H. Mes, A. Michelini, S. Mihara, G. Mikenberg, D. J. Miller, W. Mohr, A. Montanari, T. Mori, K. Nagai, I. Nakamura, H. A. Neal, R. Nisius, S. W. O'Neale, F. G. Oakham, F. Odorici, H. O. Ogren, A. Oh, A. Okpara, M. J. Oreglia, S. Orito, G. Pásztor, J. R. Pater, G. N. Patrick, J. Patt, P. Pfeifenschneider, J. E. Pilcher, J. Pinfold, D. E. Plane, B. Poli, J. Polok, O. Pooth, M. Przybycień, A. Quadt, C. Rembser, P. Renkel, H. Rick, N. Rodning, J. M. Roney, S. Rosati, K. Roscoe, A. M. Rossi, Y. Rozen, K. Runge, O. Runolfsson, D. R. Rust, K. Sachs, T. Saeki, O. Sahr, E. K.G. Sarkisyan, C. Sbarra, A. D. Schaile, O. Schaile, P. Scharff-Hansen, M. Schröder, M. Schumacher, C. Schwick, W. G. Scott, R. Seuster, T. G. Shears, B. C. Shen, C. H. Shepherd-Themistocleous, P. Sherwood, G. P. Siroli, A. Skuja, A. M. Smith, G. A. Snow, R. Sobie, S. Söldner-Rembold, S. Spagnolo, M. Sproston, A. Stahl, K. Stephens, K. Stoll, D. Strom, R. Ströhmer, L. Stumpf, B. Surrow, S. D. Talbot, S. Tarem, R. J. Taylor, R. Teuscher, M. Thiergen, J. Thomas, M. A. Thomson, E. Torrence, S. Towers, D. Toya, T. Trefzger, I. Trigger, Z. Trócsányi, E. Tsur, M. F. Turner-Watson, I. Ueda, B. Vachon, P. Vannerem, M. Verzocchi, H. Voss, J. Vossebeld, D. Waller, C. P. Ward, D. R. Ward, P. M. Watkins, A. T. Watson, N. K. Watson, P. S. Wells, T. Wengler, N. Wermes, D. Wetterling, J. S. White, G. W. Wilson, J. A. Wilson, T. R. Wyatt, S. Yamashita, V. Zacek, D. Zer-Zion

Division of Medical Physics

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

39 Scopus citations

Abstract

Measurements are presented of the polarisation of W⁺W^- boson pairs produced in e⁺e^- collisions, and of CP-violating WWZ and WWγ trilinear gauge couplings. The data were recorded by the OPAL experiment at LEP during 1998, where a total integrated luminosity of 183 pb^-1 was obtained at a centre-of-mass energy of 189 GeV. The measurements are performed through a spin density matrix analysis of the W boson decay products. The fraction of W bosons produced with longitudinal polarisation was found to be σ_L/σ_total = (21.0 ± 3.3 ± 1.6)% where the first error is statistical and the second systematic The joint W boson pair production fractions were found to be σ_TT/σ_total = (78.1 ± 9.0 ± 3.2)%, σ_LL/σ_total = (20.1 ± 7.2 ± 1.8)% and σ_TL/σ_total = (1.8 ± 14.7 ± 3.8)%. In the CP-violating trilinear gauge coupling sector we find κ̃_z = -0.20^+0.10_-0.07, g^z₄= -0.02^+0.32_-0.33 and λ̃_z = -0.18^+0.24_-0.16, where errors include both statistical and systematic uncertainties. In each case the coupling is determined with all other couplings set to their Standard Model values except those related to the measured coupling via SU(2)_L × U(1)_Y symmetry. These results are consistent with Standard Model expectations.

Original language	English
Pages (from-to)	229-240
Number of pages	12
Journal	European Physical Journal C
Volume	19
Issue number	2
DOIs	https://doi.org/10.1007/s100520100602
State	Published - 2001

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10.1007/s100520100602

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Abbiendi, G., Ackerstaff, K., Ainsley, C., Åkesson, P. F., Alexander, G., Allison, J., Anderson, K. J., Arcelli, S., Asai, S., Ashby, S. F., Axen, D., Azuelos, G., Bailey, I., Ball, A. H., Barberio, E., Barlow, R. J., Baumann, S., Behnke, T., Bell, K. W., ... Zer-Zion, D. (2001). Measurement of W boson polarisations and CP-violating triple gauge couplings from W⁺W^- production at LEP. European Physical Journal C, 19(2), 229-240. https://doi.org/10.1007/s100520100602

@article{d4ec1020000d4e8b91621e86db117934,

title = "Measurement of W boson polarisations and CP-violating triple gauge couplings from W+W- production at LEP",

abstract = "Measurements are presented of the polarisation of W+W- boson pairs produced in e+e- collisions, and of CP-violating WWZ and WWγ trilinear gauge couplings. The data were recorded by the OPAL experiment at LEP during 1998, where a total integrated luminosity of 183 pb-1 was obtained at a centre-of-mass energy of 189 GeV. The measurements are performed through a spin density matrix analysis of the W boson decay products. The fraction of W bosons produced with longitudinal polarisation was found to be σL/σtotal = (21.0 ± 3.3 ± 1.6)% where the first error is statistical and the second systematic The joint W boson pair production fractions were found to be σTT/σtotal = (78.1 ± 9.0 ± 3.2)%, σLL/σtotal = (20.1 ± 7.2 ± 1.8)% and σTL/σtotal = (1.8 ± 14.7 ± 3.8)%. In the CP-violating trilinear gauge coupling sector we find {\~κ}z = -0.20+0.10-0.07, gz4= -0.02+0.32-0.33 and {\~λ}z = -0.18+0.24-0.16, where errors include both statistical and systematic uncertainties. In each case the coupling is determined with all other couplings set to their Standard Model values except those related to the measured coupling via SU(2)L × U(1)Y symmetry. These results are consistent with Standard Model expectations.",

author = "G. Abbiendi and K. Ackerstaff and C. Ainsley and {\AA}kesson, {P. F.} and G. Alexander and J. Allison and Anderson, {K. J.} and S. Arcelli and S. Asai and Ashby, {S. F.} and D. Axen and G. Azuelos and I. Bailey and Ball, {A. H.} and E. Barberio and Barlow, {R. J.} and S. Baumann and T. Behnke and Bell, {K. W.} and G. Bella and A. Bellerive and G. Benelli and S. Bentvelsen and S. Bethke and O. Biebel and Bloodworth, {I. J.} and O. Boeriu and P. Bock and J. B{\"o}hme and D. Bonacorsi and M. Boutemeur and S. Braibant and P. Bright-Thomas and L. Brigliadori and Brown, {R. M.} and Burckhart, {H. J.} and J. Cammin and P. Capiluppi and Carnegie, {R. K.} and Carter, {A. A.} and Carter, {J. R.} and Chang, {C. Y.} and Charlton, {D. G.} and Clarke, {P. E.L.} and E. Clay and I. Cohen and Cooke, {O. C.} and J. Couchman and C. Couyoumtzelis and Coxe, {R. L.} and A. Csilling and M. Cuffiani and S. Dado and Dallavalle, {G. M.} and S. Dallison and {de Roeck}, A. and {de Wolf}, E. and P. Dervan and K. Desch and B. Dienes and Dixit, {M. S.} and M. Donkers and J. Dubbert and E. Duchovni and G. Duckeck and Duerdoth, {I. P.} and Estabrooks, {P. G.} and E. Etzion and F. Fabbri and M. Fanti and L. Feld and P. Ferrari and F. Fiedler and I. Fleck and M. Ford and A. Frey and A. F{\"u}rtjes and Futyan, {D. I.} and P. Gagnon and Gary, {J. W.} and G. Gaycken and C. Geich-Gimbel and G. Giacomelli and P. Giacomelli and D. Glenzinski and J. Goldberg and C. Grandi and K. Graham and E. Gross and J. Grunhaus and M. Gruw{\'e} and G{\"u}nther, {P. O.} and C. Hajdu and Hanson, {G. G.} and M. Hansroul and M. Hapke and K. Harder and A. Harel and M. Harin-Dirac and A. Hauke and M. Hauschild and Hawkes, {C. M.} and R. Hawkings and Hemingway, {R. J.} and C. Hensel and G. Herten and Heuer, {R. D.} and Hill, {J. C.} and A. Hocker and K. Hoffman and Homer, {R. J.} and Honma, {A. K.} and D. Horv{\'a}th and Hossain, {K. R.} and R. Howard and P. H{\"u}ntemeyer and P. Igo-Kemenes and K. Ishii and Jacob, {F. R.} and A. Jawahery and H. Jeremie and Jones, {C. R.} and P. Jovanovic and Junk, {T. R.} and N. Kanaya and J. Kanzaki and G. Karapetian and D. Karlen and V. Kartvelishvili and K. Kawagoe and T. Kawamoto and Keeler, {R. K.} and Kellogg, {R. G.} and Kennedy, {B. W.} and Kim, {D. H.} and K. Klein and A. Klier and S. Kluth and T. Kobayashi and M. Kobel and Kokott, {T. P.} and S. Komamiya and Kowalewski, {R. V.} and T. Kress and P. Krieger and {von Krogh}, J. and T. Kuhl and M. Kupper and P. Kyberd and Lafferty, {G. D.} and H. Landsman and D. Lanske and I. Lawson and Layter, {J. G.} and A. Leins and D. Lellouch and J. Letts and L. Levinson and R. Liebisch and J. Lillich and B. List and C. Littlewood and Lloyd, {A. W.} and Lloyd, {S. L.} and Loebinger, {F. K.} and Long, {G. D.} and Losty, {M. J.} and J. Lu and J. Ludwig and A. Macchiolo and A. Macpherson and W. Mader and S. Marcellini and Marchant, {T. E.} and Martin, {A. J.} and Martin, {J. P.} and G. Martinez and T. Mashimo and P. M{\"a}ttig and McDonald, {W. J.} and J. McKenna and McMahon, {T. J.} and McPherson, {R. A.} and F. Meijers and P. Mendez-Lorenzo and W. Menges and Merritt, {F. S.} and H. Mes and A. Michelini and S. Mihara and G. Mikenberg and Miller, {D. J.} and W. Mohr and A. Montanari and T. Mori and K. Nagai and I. Nakamura and Neal, {H. A.} and R. Nisius and O'Neale, {S. W.} and Oakham, {F. G.} and F. Odorici and Ogren, {H. O.} and A. Oh and A. Okpara and Oreglia, {M. J.} and S. Orito and G. P{\'a}sztor and Pater, {J. R.} and Patrick, {G. N.} and J. Patt and P. Pfeifenschneider and Pilcher, {J. E.} and J. Pinfold and Plane, {D. E.} and B. Poli and J. Polok and O. Pooth and M. Przybycie{\'n} and A. Quadt and C. Rembser and P. Renkel and H. Rick and N. Rodning and Roney, {J. M.} and S. Rosati and K. Roscoe and Rossi, {A. M.} and Y. Rozen and K. Runge and O. Runolfsson and Rust, {D. R.} and K. Sachs and T. Saeki and O. Sahr and Sarkisyan, {E. K.G.} and C. Sbarra and Schaile, {A. D.} and O. Schaile and P. Scharff-Hansen and M. Schr{\"o}der and M. Schumacher and C. Schwick and Scott, {W. G.} and R. Seuster and Shears, {T. G.} and Shen, {B. C.} and Shepherd-Themistocleous, {C. H.} and P. Sherwood and Siroli, {G. P.} and A. Skuja and Smith, {A. M.} and Snow, {G. A.} and R. Sobie and S. S{\"o}ldner-Rembold and S. Spagnolo and M. Sproston and A. Stahl and K. Stephens and K. Stoll and D. Strom and R. Str{\"o}hmer and L. Stumpf and B. Surrow and Talbot, {S. D.} and S. Tarem and Taylor, {R. J.} and R. Teuscher and M. Thiergen and J. Thomas and Thomson, {M. A.} and E. Torrence and S. Towers and D. Toya and T. Trefzger and I. Trigger and Z. Tr{\'o}cs{\'a}nyi and E. Tsur and Turner-Watson, {M. F.} and I. Ueda and B. Vachon and P. Vannerem and M. Verzocchi and H. Voss and J. Vossebeld and D. Waller and Ward, {C. P.} and Ward, {D. R.} and Watkins, {P. M.} and Watson, {A. T.} and Watson, {N. K.} and Wells, {P. S.} and T. Wengler and N. Wermes and D. Wetterling and White, {J. S.} and Wilson, {G. W.} and Wilson, {J. A.} and Wyatt, {T. R.} and S. Yamashita and V. Zacek and D. Zer-Zion",

year = "2001",

doi = "10.1007/s100520100602",

language = "English",

volume = "19",

pages = "229--240",

journal = "European Physical Journal C",

issn = "1434-6044",

number = "2",

}

Abbiendi, G, Ackerstaff, K, Ainsley, C, Åkesson, PF, Alexander, G, Allison, J, Anderson, KJ, Arcelli, S, Asai, S, Ashby, SF, Axen, D, Azuelos, G, Bailey, I, Ball, AH, Barberio, E, Barlow, RJ, Baumann, S, Behnke, T, Bell, KW, Bella, G, Bellerive, A, Benelli, G, Bentvelsen, S, Bethke, S, Biebel, O, Bloodworth, IJ, Boeriu, O, Bock, P, Böhme, J, Bonacorsi, D, Boutemeur, M, Braibant, S, Bright-Thomas, P, Brigliadori, L, Brown, RM, Burckhart, HJ, Cammin, J, Capiluppi, P, Carnegie, RK, Carter, AA, Carter, JR, Chang, CY, Charlton, DG, Clarke, PEL, Clay, E, Cohen, I, Cooke, OC, Couchman, J, Couyoumtzelis, C, Coxe, RL, Csilling, A, Cuffiani, M, Dado, S, Dallavalle, GM, Dallison, S, de Roeck, A, de Wolf, E, Dervan, P, Desch, K, Dienes, B, Dixit, MS, Donkers, M, Dubbert, J, Duchovni, E, Duckeck, G, Duerdoth, IP, Estabrooks, PG, Etzion, E, Fabbri, F, Fanti, M, Feld, L, Ferrari, P, Fiedler, F, Fleck, I, Ford, M, Frey, A, Fürtjes, A, Futyan, DI, Gagnon, P, Gary, JW, Gaycken, G, Geich-Gimbel, C, Giacomelli, G, Giacomelli, P, Glenzinski, D, Goldberg, J, Grandi, C, Graham, K, Gross, E, Grunhaus, J, Gruwé, M, Günther, PO, Hajdu, C, Hanson, GG, Hansroul, M, Hapke, M, Harder, K, Harel, A, Harin-Dirac, M, Hauke, A, Hauschild, M, Hawkes, CM, Hawkings, R, Hemingway, RJ, Hensel, C, Herten, G, Heuer, RD, Hill, JC, Hocker, A, Hoffman, K, Homer, RJ, Honma, AK, Horváth, D, Hossain, KR, Howard, R, Hüntemeyer, P, Igo-Kemenes, P, Ishii, K, Jacob, FR, Jawahery, A, Jeremie, H, Jones, CR, Jovanovic, P, Junk, TR, Kanaya, N, Kanzaki, J, Karapetian, G, Karlen, D, Kartvelishvili, V, Kawagoe, K, Kawamoto, T, Keeler, RK, Kellogg, RG, Kennedy, BW, Kim, DH, Klein, K, Klier, A, Kluth, S, Kobayashi, T, Kobel, M, Kokott, TP, Komamiya, S, Kowalewski, RV, Kress, T, Krieger, P, von Krogh, J, Kuhl, T, Kupper, M, Kyberd, P, Lafferty, GD, Landsman, H, Lanske, D, Lawson, I, Layter, JG, Leins, A, Lellouch, D, Letts, J, Levinson, L, Liebisch, R, Lillich, J, List, B, Littlewood, C, Lloyd, AW, Lloyd, SL, Loebinger, FK, Long, GD, Losty, MJ, Lu, J, Ludwig, J, Macchiolo, A, Macpherson, A, Mader, W, Marcellini, S, Marchant, TE, Martin, AJ, Martin, JP, Martinez, G, Mashimo, T, Mättig, P, McDonald, WJ, McKenna, J, McMahon, TJ, McPherson, RA, Meijers, F, Mendez-Lorenzo, P, Menges, W, Merritt, FS, Mes, H, Michelini, A, Mihara, S, Mikenberg, G, Miller, DJ, Mohr, W, Montanari, A, Mori, T, Nagai, K, Nakamura, I, Neal, HA, Nisius, R, O'Neale, SW, Oakham, FG, Odorici, F, Ogren, HO, Oh, A, Okpara, A, Oreglia, MJ, Orito, S, Pásztor, G, Pater, JR, Patrick, GN, Patt, J, Pfeifenschneider, P, Pilcher, JE, Pinfold, J, Plane, DE, Poli, B, Polok, J, Pooth, O, Przybycień, M, Quadt, A, Rembser, C, Renkel, P, Rick, H, Rodning, N, Roney, JM, Rosati, S, Roscoe, K, Rossi, AM, Rozen, Y, Runge, K, Runolfsson, O, Rust, DR, Sachs, K, Saeki, T, Sahr, O, Sarkisyan, EKG, Sbarra, C, Schaile, AD, Schaile, O, Scharff-Hansen, P, Schröder, M, Schumacher, M, Schwick, C, Scott, WG, Seuster, R, Shears, TG, Shen, BC, Shepherd-Themistocleous, CH, Sherwood, P, Siroli, GP, Skuja, A, Smith, AM, Snow, GA, Sobie, R, Söldner-Rembold, S, Spagnolo, S, Sproston, M, Stahl, A, Stephens, K, Stoll, K, Strom, D, Ströhmer, R, Stumpf, L, Surrow, B, Talbot, SD, Tarem, S, Taylor, RJ, Teuscher, R, Thiergen, M, Thomas, J, Thomson, MA, Torrence, E, Towers, S, Toya, D, Trefzger, T, Trigger, I, Trócsányi, Z, Tsur, E, Turner-Watson, MF, Ueda, I, Vachon, B, Vannerem, P, Verzocchi, M, Voss, H, Vossebeld, J, Waller, D, Ward, CP, Ward, DR, Watkins, PM, Watson, AT, Watson, NK, Wells, PS, Wengler, T, Wermes, N, Wetterling, D, White, JS, Wilson, GW, Wilson, JA, Wyatt, TR, Yamashita, S, Zacek, V & Zer-Zion, D 2001, 'Measurement of W boson polarisations and CP-violating triple gauge couplings from W⁺W^- production at LEP', European Physical Journal C, vol. 19, no. 2, pp. 229-240. https://doi.org/10.1007/s100520100602

TY - JOUR

T1 - Measurement of W boson polarisations and CP-violating triple gauge couplings from W+W- production at LEP

AU - Abbiendi, G.

AU - Ackerstaff, K.

AU - Ainsley, C.

AU - Åkesson, P. F.

AU - Alexander, G.

AU - Allison, J.

AU - Anderson, K. J.

AU - Arcelli, S.

AU - Asai, S.

AU - Ashby, S. F.

AU - Axen, D.

AU - Azuelos, G.

AU - Bailey, I.

AU - Ball, A. H.

AU - Barberio, E.

AU - Barlow, R. J.

AU - Baumann, S.

AU - Behnke, T.

AU - Bell, K. W.

AU - Bella, G.

AU - Bellerive, A.

AU - Benelli, G.

AU - Bentvelsen, S.

AU - Bethke, S.

AU - Biebel, O.

AU - Bloodworth, I. J.

AU - Boeriu, O.

AU - Bock, P.

AU - Böhme, J.

AU - Bonacorsi, D.

AU - Boutemeur, M.

AU - Braibant, S.

AU - Bright-Thomas, P.

AU - Brigliadori, L.

AU - Brown, R. M.

AU - Burckhart, H. J.

AU - Cammin, J.

AU - Capiluppi, P.

AU - Carnegie, R. K.

AU - Carter, A. A.

AU - Carter, J. R.

AU - Chang, C. Y.

AU - Charlton, D. G.

AU - Clarke, P. E.L.

AU - Clay, E.

AU - Cohen, I.

AU - Cooke, O. C.

AU - Couchman, J.

AU - Couyoumtzelis, C.

AU - Coxe, R. L.

AU - Csilling, A.

AU - Cuffiani, M.

AU - Dado, S.

AU - Dallavalle, G. M.

AU - Dallison, S.

AU - de Roeck, A.

AU - de Wolf, E.

AU - Dervan, P.

AU - Desch, K.

AU - Dienes, B.

AU - Dixit, M. S.

AU - Donkers, M.

AU - Dubbert, J.

AU - Duchovni, E.

AU - Duckeck, G.

AU - Duerdoth, I. P.

AU - Estabrooks, P. G.

AU - Etzion, E.

AU - Fabbri, F.

AU - Fanti, M.

AU - Feld, L.

AU - Ferrari, P.

AU - Fiedler, F.

AU - Fleck, I.

AU - Ford, M.

AU - Frey, A.

AU - Fürtjes, A.

AU - Futyan, D. I.

AU - Gagnon, P.

AU - Gary, J. W.

AU - Gaycken, G.

AU - Geich-Gimbel, C.

AU - Giacomelli, G.

AU - Giacomelli, P.

AU - Glenzinski, D.

AU - Goldberg, J.

AU - Grandi, C.

AU - Graham, K.

AU - Gross, E.

AU - Grunhaus, J.

AU - Gruwé, M.

AU - Günther, P. O.

AU - Hajdu, C.

AU - Hanson, G. G.

AU - Hansroul, M.

AU - Hapke, M.

AU - Harder, K.

AU - Harel, A.

AU - Harin-Dirac, M.

AU - Hauke, A.

AU - Hauschild, M.

AU - Hawkes, C. M.

AU - Hawkings, R.

AU - Hemingway, R. J.

AU - Hensel, C.

AU - Herten, G.

AU - Heuer, R. D.

AU - Hill, J. C.

AU - Hocker, A.

AU - Hoffman, K.

AU - Homer, R. J.

AU - Honma, A. K.

AU - Horváth, D.

AU - Hossain, K. R.

AU - Howard, R.

AU - Hüntemeyer, P.

AU - Igo-Kemenes, P.

AU - Ishii, K.

AU - Jacob, F. R.

AU - Jawahery, A.

AU - Jeremie, H.

AU - Jones, C. R.

AU - Jovanovic, P.

AU - Junk, T. R.

AU - Kanaya, N.

AU - Kanzaki, J.

AU - Karapetian, G.

AU - Karlen, D.

AU - Kartvelishvili, V.

AU - Kawagoe, K.

AU - Kawamoto, T.

AU - Keeler, R. K.

AU - Kellogg, R. G.

AU - Kennedy, B. W.

AU - Kim, D. H.

AU - Klein, K.

AU - Klier, A.

AU - Kluth, S.

AU - Kobayashi, T.

AU - Kobel, M.

AU - Kokott, T. P.

AU - Komamiya, S.

AU - Kowalewski, R. V.

AU - Kress, T.

AU - Krieger, P.

AU - von Krogh, J.

AU - Kuhl, T.

AU - Kupper, M.

AU - Kyberd, P.

AU - Lafferty, G. D.

AU - Landsman, H.

AU - Lanske, D.

AU - Lawson, I.

AU - Layter, J. G.

AU - Leins, A.

AU - Lellouch, D.

AU - Letts, J.

AU - Levinson, L.

AU - Liebisch, R.

AU - Lillich, J.

AU - List, B.

AU - Littlewood, C.

AU - Lloyd, A. W.

AU - Lloyd, S. L.

AU - Loebinger, F. K.

AU - Long, G. D.

AU - Losty, M. J.

AU - Lu, J.

AU - Ludwig, J.

AU - Macchiolo, A.

AU - Macpherson, A.

AU - Mader, W.

AU - Marcellini, S.

AU - Marchant, T. E.

AU - Martin, A. J.

AU - Martin, J. P.

AU - Martinez, G.

AU - Mashimo, T.

AU - Mättig, P.

AU - McDonald, W. J.

AU - McKenna, J.

AU - McMahon, T. J.

AU - McPherson, R. A.

AU - Meijers, F.

AU - Mendez-Lorenzo, P.

AU - Menges, W.

AU - Merritt, F. S.

AU - Mes, H.

AU - Michelini, A.

AU - Mihara, S.

AU - Mikenberg, G.

AU - Miller, D. J.

AU - Mohr, W.

AU - Montanari, A.

AU - Mori, T.

AU - Nagai, K.

AU - Nakamura, I.

AU - Neal, H. A.

AU - Nisius, R.

AU - O'Neale, S. W.

AU - Oakham, F. G.

AU - Odorici, F.

AU - Ogren, H. O.

AU - Oh, A.

AU - Okpara, A.

AU - Oreglia, M. J.

AU - Orito, S.

AU - Pásztor, G.

AU - Pater, J. R.

AU - Patrick, G. N.

AU - Patt, J.

AU - Pfeifenschneider, P.

AU - Pilcher, J. E.

AU - Pinfold, J.

AU - Plane, D. E.

AU - Poli, B.

AU - Polok, J.

AU - Pooth, O.

AU - Przybycień, M.

AU - Quadt, A.

AU - Rembser, C.

AU - Renkel, P.

AU - Rick, H.

AU - Rodning, N.

AU - Roney, J. M.

AU - Rosati, S.

AU - Roscoe, K.

AU - Rossi, A. M.

AU - Rozen, Y.

AU - Runge, K.

AU - Runolfsson, O.

AU - Rust, D. R.

AU - Sachs, K.

AU - Saeki, T.

AU - Sahr, O.

AU - Sarkisyan, E. K.G.

AU - Sbarra, C.

AU - Schaile, A. D.

AU - Schaile, O.

AU - Scharff-Hansen, P.

AU - Schröder, M.

AU - Schumacher, M.

AU - Schwick, C.

AU - Scott, W. G.

AU - Seuster, R.

AU - Shears, T. G.

AU - Shen, B. C.

AU - Shepherd-Themistocleous, C. H.

AU - Sherwood, P.

AU - Siroli, G. P.

AU - Skuja, A.

AU - Smith, A. M.

AU - Snow, G. A.

AU - Sobie, R.

AU - Söldner-Rembold, S.

AU - Spagnolo, S.

AU - Sproston, M.

AU - Stahl, A.

AU - Stephens, K.

AU - Stoll, K.

AU - Strom, D.

AU - Ströhmer, R.

AU - Stumpf, L.

AU - Surrow, B.

AU - Talbot, S. D.

AU - Tarem, S.

AU - Taylor, R. J.

AU - Teuscher, R.

AU - Thiergen, M.

AU - Thomas, J.

AU - Thomson, M. A.

AU - Torrence, E.

AU - Towers, S.

AU - Toya, D.

AU - Trefzger, T.

AU - Trigger, I.

AU - Trócsányi, Z.

AU - Tsur, E.

AU - Turner-Watson, M. F.

AU - Ueda, I.

AU - Vachon, B.

AU - Vannerem, P.

AU - Verzocchi, M.

AU - Voss, H.

AU - Vossebeld, J.

AU - Waller, D.

AU - Ward, C. P.

AU - Ward, D. R.

AU - Watkins, P. M.

AU - Watson, A. T.

AU - Watson, N. K.

AU - Wells, P. S.

AU - Wengler, T.

AU - Wermes, N.

AU - Wetterling, D.

AU - White, J. S.

AU - Wilson, G. W.

AU - Wilson, J. A.

AU - Wyatt, T. R.

AU - Yamashita, S.

AU - Zacek, V.

AU - Zer-Zion, D.

PY - 2001

Y1 - 2001

N2 - Measurements are presented of the polarisation of W+W- boson pairs produced in e+e- collisions, and of CP-violating WWZ and WWγ trilinear gauge couplings. The data were recorded by the OPAL experiment at LEP during 1998, where a total integrated luminosity of 183 pb-1 was obtained at a centre-of-mass energy of 189 GeV. The measurements are performed through a spin density matrix analysis of the W boson decay products. The fraction of W bosons produced with longitudinal polarisation was found to be σL/σtotal = (21.0 ± 3.3 ± 1.6)% where the first error is statistical and the second systematic The joint W boson pair production fractions were found to be σTT/σtotal = (78.1 ± 9.0 ± 3.2)%, σLL/σtotal = (20.1 ± 7.2 ± 1.8)% and σTL/σtotal = (1.8 ± 14.7 ± 3.8)%. In the CP-violating trilinear gauge coupling sector we find κ̃z = -0.20+0.10-0.07, gz4= -0.02+0.32-0.33 and λ̃z = -0.18+0.24-0.16, where errors include both statistical and systematic uncertainties. In each case the coupling is determined with all other couplings set to their Standard Model values except those related to the measured coupling via SU(2)L × U(1)Y symmetry. These results are consistent with Standard Model expectations.

AB - Measurements are presented of the polarisation of W+W- boson pairs produced in e+e- collisions, and of CP-violating WWZ and WWγ trilinear gauge couplings. The data were recorded by the OPAL experiment at LEP during 1998, where a total integrated luminosity of 183 pb-1 was obtained at a centre-of-mass energy of 189 GeV. The measurements are performed through a spin density matrix analysis of the W boson decay products. The fraction of W bosons produced with longitudinal polarisation was found to be σL/σtotal = (21.0 ± 3.3 ± 1.6)% where the first error is statistical and the second systematic The joint W boson pair production fractions were found to be σTT/σtotal = (78.1 ± 9.0 ± 3.2)%, σLL/σtotal = (20.1 ± 7.2 ± 1.8)% and σTL/σtotal = (1.8 ± 14.7 ± 3.8)%. In the CP-violating trilinear gauge coupling sector we find κ̃z = -0.20+0.10-0.07, gz4= -0.02+0.32-0.33 and λ̃z = -0.18+0.24-0.16, where errors include both statistical and systematic uncertainties. In each case the coupling is determined with all other couplings set to their Standard Model values except those related to the measured coupling via SU(2)L × U(1)Y symmetry. These results are consistent with Standard Model expectations.

UR - http://www.scopus.com/inward/record.url?scp=0002768110&partnerID=8YFLogxK

U2 - 10.1007/s100520100602

DO - 10.1007/s100520100602

M3 - Article

AN - SCOPUS:0002768110

SN - 1434-6044

VL - 19

SP - 229

EP - 240

JO - European Physical Journal C

JF - European Physical Journal C

IS - 2

ER -

Measurement of W boson polarisations and CP-violating triple gauge couplings from W⁺W^- production at LEP

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