Improved measurement of the triple gauge-boson couplings γWW and ZWW in e+e- collisions

S. Schael; R. Barate; R. Brunelière; I. De Bonis; D. Decamp; C. Goy; S. Jézéquel; J. P. Lees; F. Martin; E. Merle; M. N. Minard; B. Pietrzyk; B. Trocmé; S. Bravo; M. P. Casado; M. Chmeissani; J. M. Crespo; E. Fernandez; M. Fernandez-Bosman; Ll Garrido; M. Martinez; A. Pacheco; H. Ruiz; A. Colaleo; D. Creanza; N. De Filippis; M. De Palma; G. Iaselli; G. Maggi; M. Maggi; S. Nuzzo; A. Ranieri; G. Raso; F. Ruggieri; G. Selvaggi; L. Silvestris; P. Tempesta; A. Tricomi; G. Zito; X. Huang; J. Lin; Q. Ouyang; T. Wang; Y. Xie; R. Xu; S. Xue; J. Zhang; L. Zhang; W. Zhao; D. Abbaneo; T. Barklow; O. Buchmüller; M. Cattaneo; B. Clerbaux; H. Drevermann; R. W. Forty; M. Frank; F. Gianotti; J. B. Hansen; J. Harvey; D. E. Hutchcroft; P. Janot; B. Jost; M. Kado; P. Mato; A. Moutoussi; F. Ranjard; L. Rolandi; D. Schlatter; F. Teubert; A. Valassi; I. Videau; F. Badaud; S. Dessagne; A. Falvard; D. Fayolle; P. Gay; J. Jousset; B. Michel; S. Monteil; D. Pallin; J. M. Pascolo; P. Perret; J. D. Hansen; J. R. Hansen; P. H. Hansen; A. C. Kraan; B. S. Nilsson; A. Kyriakis; C. Markou; E. Simopoulou; A. Vayaki; K. Zachariadou; A. Blondel; J. C. Brient; F. MacHefert; A. Rougé; H. Videau; V. Ciulli; E. Focardi; G. Parrini; A. Antonelli; M. Antonelli; G. Bencivenni; F. Bossi; G. Capon; F. Cerutti; V. Chiarella; P. Laurelli; G. Mannocchi; G. P. Murtas; L. Passalacqua; J. Kennedy; J. G. Lynch; P. Negus; V. O'Shea; A. S. Thompson; S. Wasserbaech; R. Cavanaugh; S. Dhamotharan; C. Geweniger; P. Hanke; V. Hepp; E. E. Kluge; A. Putzer; H. Stenzel; K. Tittel; M. Wunsch; R. Beuselinck; W. Cameron; G. Davies; P. J. Dornan; M. Girone; N. Marinelli; J. Nowell; S. A. Rutherford; J. K. Sedgbeer; J. C. Thompson; R. White; V. M. Ghete; P. Girtler; E. Kneringer; D. Kuhn; G. Rudolph; E. Bouhova-Thacker; C. K. Bowdery; D. P. Clarke; G. Ellis; A. J. Finch; F. Foster; G. Hughes; R. W.L. Jones; M. R. Pearson; N. A. Robertson; M. Smizanska; O. Van Der Aa; C. Delaere; G. Leibenguth; V. Lemaitre; U. Blumenschein; F. Hölldorfer; K. Jakobs; F. Kayser; A. S. Müller; B. Renk; H. G. Sander; S. Schmeling; H. Wachsmuth; C. Zeitnitz; T. Ziegler; A. Bonissent; P. Coyle; C. Curtil; A. Ealet; D. Fouchez; P. Payre; A. Tilquin; F. Ragusa; A. David; H. Dietl; G. Ganis; K. Hüttmann; G. Lütjens; W. Männer; H. G. Moser; R. Settles; M. Villegas; G. Wolf; J. Boucrot; O. Callot; M. Davier; L. Duflot; J. F. Grivaz; Ph Heusse; A. Jacholkowska; L. Serin; J. J. Veillet; P. Azzurri; G. Bagliesi; T. Boccali; L. Foà; A. Giammanco; A. Giassi; F. Ligabue; A. Messineo; F. Palla; G. Sanguinetti; A. Sciabà; G. Sguazzoni; P. Spagnolo; R. Tenchini; A. Venturi; P. G. Verdini; O. Awunor; G. A. Blair; G. Cowan; A. Garcia-Bellido; M. G. Green; T. Medcalf; A. Misiejuk; J. A. Strong; P. Teixeira-Dias; R. W. Clifft; T. R. Edgecock; P. R. Norton; I. R. Tomalin; J. J. Ward; B. Bloch-Devaux; D. Boumediene; P. Colas; B. Fabbro; E. Lançon; M. C. Lemaire; E. Locci; P. Perez; J. Rander; B. Tuchming; B. Vallage; A. M. Litke; G. Taylor; C. N. Booth; S. Cartwright; F. Combley; P. N. Hodgson; M. Lehto; L. F. Thompson; A. Böhrer; S. Brandt; C. Grupen; J. Hess; A. Ngac; G. Prange; C. Borean; G. Giannini; H. He; J. Putz; J. Rothberg; S. R. Armstrong; K. Berkelman; K. Cranmer; D. P.S. Ferguson; Y. Gao; S. González; O. J. Hayes; H. Hu; S. Jin; J. Kile; P. A. McNamara; J. Nielsen; Y. B. Pan; J. H. Von Wimmersperg-Toeller; W. Wiedenmann; J. Wu; Lan Wu Sau; X. Wu; G. Zobernig; G. Dissertori

doi:10.1016/j.physletb.2005.03.058

Improved measurement of the triple gauge-boson couplings γWW and ZWW in e⁺e^- collisions

S. Schael, R. Barate, R. Brunelière, I. De Bonis, D. Decamp, C. Goy, S. Jézéquel, J. P. Lees, F. Martin, E. Merle, M. N. Minard, B. Pietrzyk, B. Trocmé, S. Bravo, M. P. Casado, M. Chmeissani, J. M. Crespo, E. Fernandez, M. Fernandez-Bosman, Ll GarridoM. Martinez, A. Pacheco, H. Ruiz, A. Colaleo, D. Creanza, N. De Filippis, M. De Palma, G. Iaselli, G. Maggi, M. Maggi, S. Nuzzo, A. Ranieri, G. Raso, F. Ruggieri, G. Selvaggi, L. Silvestris, P. Tempesta, A. Tricomi, G. Zito, X. Huang, J. Lin, Q. Ouyang, T. Wang, Y. Xie, R. Xu, S. Xue, J. Zhang, L. Zhang, W. Zhao, D. Abbaneo, T. Barklow, O. Buchmüller, M. Cattaneo, B. Clerbaux, H. Drevermann, R. W. Forty, M. Frank, F. Gianotti, J. B. Hansen, J. Harvey, D. E. Hutchcroft, P. Janot, B. Jost, M. Kado, P. Mato, A. Moutoussi, F. Ranjard, L. Rolandi, D. Schlatter, F. Teubert, A. Valassi, I. Videau, F. Badaud, S. Dessagne, A. Falvard, D. Fayolle, P. Gay, J. Jousset, B. Michel, S. Monteil, D. Pallin, J. M. Pascolo, P. Perret, J. D. Hansen, J. R. Hansen, P. H. Hansen, A. C. Kraan, B. S. Nilsson, A. Kyriakis, C. Markou, E. Simopoulou, A. Vayaki, K. Zachariadou, A. Blondel, J. C. Brient, F. MacHefert, A. Rougé, H. Videau, V. Ciulli, E. Focardi, G. Parrini, A. Antonelli, M. Antonelli, G. Bencivenni, F. Bossi, G. Capon, F. Cerutti, V. Chiarella, P. Laurelli, G. Mannocchi, G. P. Murtas, L. Passalacqua, J. Kennedy, J. G. Lynch, P. Negus, V. O'Shea, A. S. Thompson, S. Wasserbaech, R. Cavanaugh, S. Dhamotharan, C. Geweniger, P. Hanke, V. Hepp, E. E. Kluge, A. Putzer, H. Stenzel, K. Tittel, M. Wunsch, R. Beuselinck, W. Cameron, G. Davies, P. J. Dornan, M. Girone, N. Marinelli, J. Nowell, S. A. Rutherford, J. K. Sedgbeer, J. C. Thompson, R. White, V. M. Ghete, P. Girtler, E. Kneringer, D. Kuhn, G. Rudolph, E. Bouhova-Thacker, C. K. Bowdery, D. P. Clarke, G. Ellis, A. J. Finch, F. Foster, G. Hughes, R. W.L. Jones, M. R. Pearson, N. A. Robertson, M. Smizanska, O. Van Der Aa, C. Delaere, G. Leibenguth, V. Lemaitre, U. Blumenschein, F. Hölldorfer, K. Jakobs, F. Kayser, A. S. Müller, B. Renk, H. G. Sander, S. Schmeling, H. Wachsmuth, C. Zeitnitz, T. Ziegler, A. Bonissent, P. Coyle, C. Curtil, A. Ealet, D. Fouchez, P. Payre, A. Tilquin, F. Ragusa, A. David, H. Dietl, G. Ganis, K. Hüttmann, G. Lütjens, W. Männer, H. G. Moser, R. Settles, M. Villegas, G. Wolf, J. Boucrot, O. Callot, M. Davier, L. Duflot, J. F. Grivaz, Ph Heusse, A. Jacholkowska, L. Serin, J. J. Veillet, P. Azzurri, G. Bagliesi, T. Boccali, L. Foà, A. Giammanco, A. Giassi, F. Ligabue, A. Messineo, F. Palla, G. Sanguinetti, A. Sciabà, G. Sguazzoni, P. Spagnolo, R. Tenchini, A. Venturi, P. G. Verdini, O. Awunor, G. A. Blair, G. Cowan, A. Garcia-Bellido, M. G. Green, T. Medcalf, A. Misiejuk, J. A. Strong, P. Teixeira-Dias, R. W. Clifft, T. R. Edgecock, P. R. Norton, I. R. Tomalin, J. J. Ward, B. Bloch-Devaux, D. Boumediene, P. Colas, B. Fabbro, E. Lançon, M. C. Lemaire, E. Locci, P. Perez, J. Rander, B. Tuchming, B. Vallage, A. M. Litke, G. Taylor, C. N. Booth, S. Cartwright, F. Combley, P. N. Hodgson, M. Lehto, L. F. Thompson, A. Böhrer, S. Brandt, C. Grupen, J. Hess, A. Ngac, G. Prange, C. Borean, G. Giannini, H. He, J. Putz, J. Rothberg, S. R. Armstrong, K. Berkelman, K. Cranmer, D. P.S. Ferguson, Y. Gao, S. González, O. J. Hayes, H. Hu, S. Jin, J. Kile, P. A. McNamara, J. Nielsen, Y. B. Pan, J. H. Von Wimmersperg-Toeller, W. Wiedenmann, J. Wu, Lan Wu Sau, X. Wu, G. Zobernig, G. Dissertori

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

Abstract

Triple gauge-boson couplings γWW and ZWW involving single-photon, single-W and W-pair production are determined using data samples collected at LEP with the ALEPH detector at centre-of-mass energies between 183 and 209 GeV. The integrated luminosity used is 700 pb^-1 for the single-photon measurement and 683 pb^-1 for the W channels. Restricting the measurement to C- and P-conserving terms and applying local SU(2) _L×U(1)_Y gauge invariance, the measured values of the parameters g₁^Z, κ_γ and λ_γ are: g₁^Z=1.001±0. 027(stat)±0.013(syst), κ_γ=0.971±0.055(stat) ±0.030(syst), λ_γ=-0.012±0.027(stat) ±0.011(syst) for single-parameter fits, where the two other parameters are fixed to their Standard Model values. Results are also presented for the cases where two or all three couplings are allowed to vary. An additional analysis using W-pair events is performed to measure the unconstrained real and imaginary parts of all 14 triple gauge-boson couplings and to perform an indirect search for a techni-ρ resonance. No deviations from the Standard Model expectations are observed and the lower limit on the techni-ρ mass is set to 600 GeV/c² at 95% confidence level.

Original language	English (US)
Pages (from-to)	7-26
Number of pages	20
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	614
Issue number	1-2
DOIs	https://doi.org/10.1016/j.physletb.2005.03.058
State	Published - May 12 2005

ASJC Scopus subject areas

Nuclear and High Energy Physics

Access to Document

10.1016/j.physletb.2005.03.058

Cite this

Schael, S., Barate, R., Brunelière, R., De Bonis, I., Decamp, D., Goy, C., Jézéquel, S., Lees, J. P., Martin, F., Merle, E., Minard, M. N., Pietrzyk, B., Trocmé, B., Bravo, S., Casado, M. P., Chmeissani, M., Crespo, J. M., Fernandez, E., Fernandez-Bosman, M., ... Dissertori, G. (2005). Improved measurement of the triple gauge-boson couplings γWW and ZWW in e⁺e^- collisions. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 614(1-2), 7-26. https://doi.org/10.1016/j.physletb.2005.03.058

Schael, S, Barate, R, Brunelière, R, De Bonis, I, Decamp, D, Goy, C, Jézéquel, S, Lees, JP, Martin, F, Merle, E, Minard, MN, Pietrzyk, B, Trocmé, B, Bravo, S, Casado, MP, Chmeissani, M, Crespo, JM, Fernandez, E, Fernandez-Bosman, M, Garrido, L, Martinez, M, Pacheco, A, Ruiz, H, Colaleo, A, Creanza, D, De Filippis, N, De Palma, M, Iaselli, G, Maggi, G, Maggi, M, Nuzzo, S, Ranieri, A, Raso, G, Ruggieri, F, Selvaggi, G, Silvestris, L, Tempesta, P, Tricomi, A, Zito, G, Huang, X, Lin, J, Ouyang, Q, Wang, T, Xie, Y, Xu, R, Xue, S, Zhang, J, Zhang, L, Zhao, W, Abbaneo, D, Barklow, T, Buchmüller, O, Cattaneo, M, Clerbaux, B, Drevermann, H, Forty, RW, Frank, M, Gianotti, F, Hansen, JB, Harvey, J, Hutchcroft, DE, Janot, P, Jost, B, Kado, M, Mato, P, Moutoussi, A, Ranjard, F, Rolandi, L, Schlatter, D, Teubert, F, Valassi, A, Videau, I, Badaud, F, Dessagne, S, Falvard, A, Fayolle, D, Gay, P, Jousset, J, Michel, B, Monteil, S, Pallin, D, Pascolo, JM, Perret, P, Hansen, JD, Hansen, JR, Hansen, PH, Kraan, AC, Nilsson, BS, Kyriakis, A, Markou, C, Simopoulou, E, Vayaki, A, Zachariadou, K, Blondel, A, Brient, JC, MacHefert, F, Rougé, A, Videau, H, Ciulli, V, Focardi, E, Parrini, G, Antonelli, A, Antonelli, M, Bencivenni, G, Bossi, F, Capon, G, Cerutti, F, Chiarella, V, Laurelli, P, Mannocchi, G, Murtas, GP, Passalacqua, L, Kennedy, J, Lynch, JG, Negus, P, O'Shea, V, Thompson, AS, Wasserbaech, S, Cavanaugh, R, Dhamotharan, S, Geweniger, C, Hanke, P, Hepp, V, Kluge, EE, Putzer, A, Stenzel, H, Tittel, K, Wunsch, M, Beuselinck, R, Cameron, W, Davies, G, Dornan, PJ, Girone, M, Marinelli, N, Nowell, J, Rutherford, SA, Sedgbeer, JK, Thompson, JC, White, R, Ghete, VM, Girtler, P, Kneringer, E, Kuhn, D, Rudolph, G, Bouhova-Thacker, E, Bowdery, CK, Clarke, DP, Ellis, G, Finch, AJ, Foster, F, Hughes, G, Jones, RWL, Pearson, MR, Robertson, NA, Smizanska, M, Van Der Aa, O, Delaere, C, Leibenguth, G, Lemaitre, V, Blumenschein, U, Hölldorfer, F, Jakobs, K, Kayser, F, Müller, AS, Renk, B, Sander, HG, Schmeling, S, Wachsmuth, H, Zeitnitz, C, Ziegler, T, Bonissent, A, Coyle, P, Curtil, C, Ealet, A, Fouchez, D, Payre, P, Tilquin, A, Ragusa, F, David, A, Dietl, H, Ganis, G, Hüttmann, K, Lütjens, G, Männer, W, Moser, HG, Settles, R, Villegas, M, Wolf, G, Boucrot, J, Callot, O, Davier, M, Duflot, L, Grivaz, JF, Heusse, P, Jacholkowska, A, Serin, L, Veillet, JJ, Azzurri, P, Bagliesi, G, Boccali, T, Foà, L, Giammanco, A, Giassi, A, Ligabue, F, Messineo, A, Palla, F, Sanguinetti, G, Sciabà, A, Sguazzoni, G, Spagnolo, P, Tenchini, R, Venturi, A, Verdini, PG, Awunor, O, Blair, GA, Cowan, G, Garcia-Bellido, A, Green, MG, Medcalf, T, Misiejuk, A, Strong, JA, Teixeira-Dias, P, Clifft, RW, Edgecock, TR, Norton, PR, Tomalin, IR, Ward, JJ, Bloch-Devaux, B, Boumediene, D, Colas, P, Fabbro, B, Lançon, E, Lemaire, MC, Locci, E, Perez, P, Rander, J, Tuchming, B, Vallage, B, Litke, AM, Taylor, G, Booth, CN, Cartwright, S, Combley, F, Hodgson, PN, Lehto, M, Thompson, LF, Böhrer, A, Brandt, S, Grupen, C, Hess, J, Ngac, A, Prange, G, Borean, C, Giannini, G, He, H, Putz, J, Rothberg, J, Armstrong, SR, Berkelman, K, Cranmer, K, Ferguson, DPS, Gao, Y, González, S, Hayes, OJ, Hu, H, Jin, S, Kile, J, McNamara, PA, Nielsen, J, Pan, YB, Von Wimmersperg-Toeller, JH, Wiedenmann, W, Wu, J, Sau, LW, Wu, X, Zobernig, G & Dissertori, G 2005, 'Improved measurement of the triple gauge-boson couplings γWW and ZWW in e⁺e^- collisions', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 614, no. 1-2, pp. 7-26. https://doi.org/10.1016/j.physletb.2005.03.058

@article{cb61637e33d94e3ebf9155d523cfd176,

title = "Improved measurement of the triple gauge-boson couplings γWW and ZWW in e+e- collisions",

abstract = "Triple gauge-boson couplings γWW and ZWW involving single-photon, single-W and W-pair production are determined using data samples collected at LEP with the ALEPH detector at centre-of-mass energies between 183 and 209 GeV. The integrated luminosity used is 700 pb-1 for the single-photon measurement and 683 pb-1 for the W channels. Restricting the measurement to C- and P-conserving terms and applying local SU(2) L×U(1)Y gauge invariance, the measured values of the parameters g1Z, κγ and λγ are: g1Z=1.001±0. 027(stat)±0.013(syst), κγ=0.971±0.055(stat) ±0.030(syst), λγ=-0.012±0.027(stat) ±0.011(syst) for single-parameter fits, where the two other parameters are fixed to their Standard Model values. Results are also presented for the cases where two or all three couplings are allowed to vary. An additional analysis using W-pair events is performed to measure the unconstrained real and imaginary parts of all 14 triple gauge-boson couplings and to perform an indirect search for a techni-ρ resonance. No deviations from the Standard Model expectations are observed and the lower limit on the techni-ρ mass is set to 600 GeV/c2 at 95% confidence level.",

author = "S. Schael and R. Barate and R. Bruneli{\`e}re and {De Bonis}, I. and D. Decamp and C. Goy and S. J{\'e}z{\'e}quel and Lees, {J. P.} and F. Martin and E. Merle and Minard, {M. N.} and B. Pietrzyk and B. Trocm{\'e} and S. Bravo and Casado, {M. P.} and M. Chmeissani and Crespo, {J. M.} and E. Fernandez and M. Fernandez-Bosman and Ll Garrido and M. Martinez and A. Pacheco and H. Ruiz and A. Colaleo and D. Creanza and {De Filippis}, N. and {De Palma}, M. and G. Iaselli and G. Maggi and M. Maggi and S. Nuzzo and A. Ranieri and G. Raso and F. Ruggieri and G. Selvaggi and L. Silvestris and P. Tempesta and A. Tricomi and G. Zito and X. Huang and J. Lin and Q. Ouyang and T. Wang and Y. Xie and R. Xu and S. Xue and J. Zhang and L. Zhang and W. Zhao and D. Abbaneo and T. Barklow and O. Buchm{\"u}ller and M. Cattaneo and B. Clerbaux and H. Drevermann and Forty, {R. W.} and M. Frank and F. Gianotti and Hansen, {J. B.} and J. Harvey and Hutchcroft, {D. E.} and P. Janot and B. Jost and M. Kado and P. Mato and A. Moutoussi and F. Ranjard and L. Rolandi and D. Schlatter and F. Teubert and A. Valassi and I. Videau and F. Badaud and S. Dessagne and A. Falvard and D. Fayolle and P. Gay and J. Jousset and B. Michel and S. Monteil and D. Pallin and Pascolo, {J. M.} and P. Perret and Hansen, {J. D.} and Hansen, {J. R.} and Hansen, {P. H.} and Kraan, {A. C.} and Nilsson, {B. S.} and A. Kyriakis and C. Markou and E. Simopoulou and A. Vayaki and K. Zachariadou and A. Blondel and Brient, {J. C.} and F. MacHefert and A. Roug{\'e} and H. Videau and V. Ciulli and E. Focardi and G. Parrini and A. Antonelli and M. Antonelli and G. Bencivenni and F. Bossi and G. Capon and F. Cerutti and V. Chiarella and P. Laurelli and G. Mannocchi and Murtas, {G. P.} and L. Passalacqua and J. Kennedy and Lynch, {J. G.} and P. Negus and V. O'Shea and Thompson, {A. S.} and S. Wasserbaech and R. Cavanaugh and S. Dhamotharan and C. Geweniger and P. Hanke and V. Hepp and Kluge, {E. E.} and A. Putzer and H. Stenzel and K. Tittel and M. Wunsch and R. Beuselinck and W. Cameron and G. Davies and Dornan, {P. J.} and M. Girone and N. Marinelli and J. Nowell and Rutherford, {S. A.} and Sedgbeer, {J. K.} and Thompson, {J. C.} and R. White and Ghete, {V. M.} and P. Girtler and E. Kneringer and D. Kuhn and G. Rudolph and E. Bouhova-Thacker and Bowdery, {C. K.} and Clarke, {D. P.} and G. Ellis and Finch, {A. J.} and F. Foster and G. Hughes and Jones, {R. W.L.} and Pearson, {M. R.} and Robertson, {N. A.} and M. Smizanska and {Van Der Aa}, O. and C. Delaere and G. Leibenguth and V. Lemaitre and U. Blumenschein and F. H{\"o}lldorfer and K. Jakobs and F. Kayser and M{\"u}ller, {A. S.} and B. Renk and Sander, {H. G.} and S. Schmeling and H. Wachsmuth and C. Zeitnitz and T. Ziegler and A. Bonissent and P. Coyle and C. Curtil and A. Ealet and D. Fouchez and P. Payre and A. Tilquin and F. Ragusa and A. David and H. Dietl and G. Ganis and K. H{\"u}ttmann and G. L{\"u}tjens and W. M{\"a}nner and Moser, {H. G.} and R. Settles and M. Villegas and G. Wolf and J. Boucrot and O. Callot and M. Davier and L. Duflot and Grivaz, {J. F.} and Ph Heusse and A. Jacholkowska and L. Serin and Veillet, {J. J.} and P. Azzurri and G. Bagliesi and T. Boccali and L. Fo{\`a} and A. Giammanco and A. Giassi and F. Ligabue and A. Messineo and F. Palla and G. Sanguinetti and A. Sciab{\`a} and G. Sguazzoni and P. Spagnolo and R. Tenchini and A. Venturi and Verdini, {P. G.} and O. Awunor and Blair, {G. A.} and G. Cowan and A. Garcia-Bellido and Green, {M. G.} and T. Medcalf and A. Misiejuk and Strong, {J. A.} and P. Teixeira-Dias and Clifft, {R. W.} and Edgecock, {T. R.} and Norton, {P. R.} and Tomalin, {I. R.} and Ward, {J. J.} and B. Bloch-Devaux and D. Boumediene and P. Colas and B. Fabbro and E. Lan{\c c}on and Lemaire, {M. C.} and E. Locci and P. Perez and J. Rander and B. Tuchming and B. Vallage and Litke, {A. M.} and G. Taylor and Booth, {C. N.} and S. Cartwright and F. Combley and Hodgson, {P. N.} and M. Lehto and Thompson, {L. F.} and A. B{\"o}hrer and S. Brandt and C. Grupen and J. Hess and A. Ngac and G. Prange and C. Borean and G. Giannini and H. He and J. Putz and J. Rothberg and Armstrong, {S. R.} and K. Berkelman and K. Cranmer and Ferguson, {D. P.S.} and Y. Gao and S. Gonz{\'a}lez and Hayes, {O. J.} and H. Hu and S. Jin and J. Kile and McNamara, {P. A.} and J. Nielsen and Pan, {Y. B.} and {Von Wimmersperg-Toeller}, {J. H.} and W. Wiedenmann and J. Wu and Sau, {Lan Wu} and X. Wu and G. Zobernig and G. Dissertori",

year = "2005",

month = may,

day = "12",

doi = "10.1016/j.physletb.2005.03.058",

language = "English (US)",

volume = "614",

pages = "7--26",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

publisher = "Elsevier B.V.",

number = "1-2",

}

TY - JOUR

T1 - Improved measurement of the triple gauge-boson couplings γWW and ZWW in e+e- collisions

AU - Schael, S.

AU - Barate, R.

AU - Brunelière, R.

AU - De Bonis, I.

AU - Decamp, D.

AU - Goy, C.

AU - Jézéquel, S.

AU - Lees, J. P.

AU - Martin, F.

AU - Merle, E.

AU - Minard, M. N.

AU - Pietrzyk, B.

AU - Trocmé, B.

AU - Bravo, S.

AU - Casado, M. P.

AU - Chmeissani, M.

AU - Crespo, J. M.

AU - Fernandez, E.

AU - Fernandez-Bosman, M.

AU - Garrido, Ll

AU - Martinez, M.

AU - Pacheco, A.

AU - Ruiz, H.

AU - Colaleo, A.

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PY - 2005/5/12

Y1 - 2005/5/12

N2 - Triple gauge-boson couplings γWW and ZWW involving single-photon, single-W and W-pair production are determined using data samples collected at LEP with the ALEPH detector at centre-of-mass energies between 183 and 209 GeV. The integrated luminosity used is 700 pb-1 for the single-photon measurement and 683 pb-1 for the W channels. Restricting the measurement to C- and P-conserving terms and applying local SU(2) L×U(1)Y gauge invariance, the measured values of the parameters g1Z, κγ and λγ are: g1Z=1.001±0. 027(stat)±0.013(syst), κγ=0.971±0.055(stat) ±0.030(syst), λγ=-0.012±0.027(stat) ±0.011(syst) for single-parameter fits, where the two other parameters are fixed to their Standard Model values. Results are also presented for the cases where two or all three couplings are allowed to vary. An additional analysis using W-pair events is performed to measure the unconstrained real and imaginary parts of all 14 triple gauge-boson couplings and to perform an indirect search for a techni-ρ resonance. No deviations from the Standard Model expectations are observed and the lower limit on the techni-ρ mass is set to 600 GeV/c2 at 95% confidence level.

AB - Triple gauge-boson couplings γWW and ZWW involving single-photon, single-W and W-pair production are determined using data samples collected at LEP with the ALEPH detector at centre-of-mass energies between 183 and 209 GeV. The integrated luminosity used is 700 pb-1 for the single-photon measurement and 683 pb-1 for the W channels. Restricting the measurement to C- and P-conserving terms and applying local SU(2) L×U(1)Y gauge invariance, the measured values of the parameters g1Z, κγ and λγ are: g1Z=1.001±0. 027(stat)±0.013(syst), κγ=0.971±0.055(stat) ±0.030(syst), λγ=-0.012±0.027(stat) ±0.011(syst) for single-parameter fits, where the two other parameters are fixed to their Standard Model values. Results are also presented for the cases where two or all three couplings are allowed to vary. An additional analysis using W-pair events is performed to measure the unconstrained real and imaginary parts of all 14 triple gauge-boson couplings and to perform an indirect search for a techni-ρ resonance. No deviations from the Standard Model expectations are observed and the lower limit on the techni-ρ mass is set to 600 GeV/c2 at 95% confidence level.

UR - http://www.scopus.com/inward/record.url?scp=20944441613&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=20944441613&partnerID=8YFLogxK

U2 - 10.1016/j.physletb.2005.03.058

DO - 10.1016/j.physletb.2005.03.058

M3 - Article

AN - SCOPUS:20944441613

SN - 0370-2693

VL - 614

SP - 7

EP - 26

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 - 1-2

ER -

Improved measurement of the triple gauge-boson couplings γWW and ZWW in e⁺e^- collisions

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