Constraints on anomalous quartic gauge boson couplings from ννγγ and qq̄γγ events at CERN LEP2

G. Abbiendi; C. Ainsley; P. F. Åkesson; G. Alexander; J. Allison; P. Amaral; G. Anagnostou; K. J. Anderson; S. Asai; D. Axen; G. Azuelos; I. Bailey; E. Barberio; T. Barillari; R. J. Barlow; R. J. Batley; P. Bechtle; T. Behnke; K. W. Bell; P. J. Bell; G. Bella; A. Bellerive; G. Benelli; S. Bethke; O. Biebel; O. Boeriu; P. Bock; M. Boutemeur; S. Braibant; L. Brigliadori; R. M. Brown; K. Buesser; H. J. Burckhart; S. Campana; R. K. Carnegie; A. A. Carter; J. R. Carter; C. Y. Chang; D. G. Charlton; C. Ciocca; A. Csilling; M. Cuffiani; S. Dado; A. de Roeck; E. A. de Wolf; K. Desch; B. Dienes; M. Donkers; J. Dubbert; E. Duchovni; G. Duckeck; I. P. Duerdoth; E. Etzion; F. Fabbri; L. Feld; P. Ferrari; F. Fiedler; I. Fleck; M. Ford; A. Frey; P. Gagnon; J. W. Gary; G. Gaycken; C. Geich-Gimbel; G. Giacomelli; P. Giacomelli; M. Giunta; J. Goldberg; E. Gross; J. Grunhaus; M. Gruwé; P. O. Günther; A. Gupta; C. Hajdu; M. Hamann; G. G. Hanson; A. Harel; M. Hauschild; C. M. Hawkes; R. Hawkings; R. J. Hemingway; G. Herten; R. D. Heuer; J. C. Hill; K. Hoffman; D. Horvath; P. Igo-Kemenes; K. Ishii; H. Jeremie; P. Jovanovic; T. R. Junk; N. Kanaya; J. Kanzaki; D. Karlen; K. Kawagoe; T. Kawamoto; R. K. Keeler; R. G. Kellogg; B. W. Kennedy; S. Kluth; T. Kobayashi; M. Kobel; S. Komamiya; T. Kramer; P. Krieger; J. von Krogh; K. Kruger; T. Kuhl; M. Kupper; G. D. Lafferty; H. Landsman; D. Lanske; J. G. Layter; D. Lellouch; J. Letts; L. Levinson; J. Lillich; S. L. Lloyd; F. K. Loebinger; J. Lu; A. Ludwig; J. Ludwig; W. Mader; S. Marcellini; A. J. Martin; G. Masetti; T. Mashimo; P. Mättig; J. McKenna; R. A. McPherson; F. Meijers; W. Menges; F. S. Merritt; H. Mes; N. Meyer; A. Michelini; S. Mihara; G. Mikenberg; D. J. Miller; S. Moed; W. Mohr; T. Mori; A. Mutter; K. Nagai; I. Nakamura; H. Nanjo; H. A. Neal; R. Nisius; S. W. O'Neale; A. Oh; M. J. Oreglia; S. Orito; C. Pahl; G. Pásztor; J. R. Pater; J. E. Pilcher; J. Pinfold; D. E. Plane; B. Poli; O. Pooth; M. Przybycień; A. Quadt; K. Rabbertz; C. Rembser; P. Renkel; J. M. Roney; Y. Rozen; K. Runge; K. Sachs; T. Saeki; E. K.G. Sarkisyan; A. D. Schaile; O. Schaile; P. Scharff-Hansen; J. Schieck; T. Schörner-Sadenius; M. Schröder; M. Schumacher; W. G. Scott; R. Seuster; T. G. Shears; B. C. Shen; P. Sherwood; A. Skuja; A. M. Smith; R. Sobie; S. Söldner-Rembold; F. Spano; A. Stahl; D. Strom; R. Ströhmer; S. Tarem; M. Tasevsky; R. Teuscher; M. A. Thomson; E. Torrence; D. Toya; P. Tran; I. Trigger; Z. Trócsányi; E. Tsur; M. F. Turner-Watson; I. Ueda; B. Ujvári; C. F. Vollmer; P. Vannerem; R. Vértesi; M. Verzocchi; H. Voss; J. Vossebeld; C. P. Ward; D. R. Ward; P. M. Watkins; A. T. Watson; N. K. Watson; P. S. Wells; T. Wengler; N. Wermes; G. W. Wilson; J. A. Wilson; G. Wolf; T. R. Wyatt; S. Yamashita; D. Zer-Zion; L. Zivkovic

doi:10.1103/PhysRevD.70.032005

Constraints on anomalous quartic gauge boson couplings from ννγγ and qq̄γγ events at CERN LEP2

G. Abbiendi, C. Ainsley, P. F. Åkesson, G. Alexander, J. Allison, P. Amaral, G. Anagnostou, K. J. Anderson, S. Asai, D. Axen, G. Azuelos, I. Bailey, E. Barberio, T. Barillari, R. J. Barlow, R. J. Batley, P. Bechtle, T. Behnke, K. W. Bell, P. J. BellG. Bella, A. Bellerive, G. Benelli, S. Bethke, O. Biebel, O. Boeriu, P. Bock, M. Boutemeur, S. Braibant, L. Brigliadori, R. M. Brown, K. Buesser, H. J. Burckhart, S. Campana, R. K. Carnegie, A. A. Carter, J. R. Carter, C. Y. Chang, D. G. Charlton, C. Ciocca, A. Csilling, M. Cuffiani, S. Dado, A. de Roeck, E. A. de Wolf, K. Desch, B. Dienes, M. Donkers, J. Dubbert, E. Duchovni, G. Duckeck, I. P. Duerdoth, E. Etzion, F. Fabbri, L. Feld, P. Ferrari, F. Fiedler, I. Fleck, M. Ford, A. Frey, P. Gagnon, J. W. Gary, G. Gaycken, C. Geich-Gimbel, G. Giacomelli, P. Giacomelli, M. Giunta, J. Goldberg, E. Gross, J. Grunhaus, M. Gruwé, P. O. Günther, A. Gupta, C. Hajdu, M. Hamann, G. G. Hanson, A. Harel, M. Hauschild, C. M. Hawkes, R. Hawkings, R. J. Hemingway, G. Herten, R. D. Heuer, J. C. Hill, K. Hoffman, D. Horvath, P. Igo-Kemenes, K. Ishii, H. Jeremie, P. Jovanovic, T. R. Junk, N. Kanaya, J. Kanzaki, D. Karlen, K. Kawagoe, T. Kawamoto, R. K. Keeler, R. G. Kellogg, B. W. Kennedy, S. Kluth, T. Kobayashi, M. Kobel, S. Komamiya, T. Kramer, P. Krieger, J. von Krogh, K. Kruger, T. Kuhl, M. Kupper, G. D. Lafferty, H. Landsman, D. Lanske, J. G. Layter, D. Lellouch, J. Letts, L. Levinson, J. Lillich, S. L. Lloyd, F. K. Loebinger, J. Lu, A. Ludwig, J. Ludwig, W. Mader, S. Marcellini, A. J. Martin, G. Masetti, T. Mashimo, P. Mättig, J. McKenna, R. A. McPherson, F. Meijers, W. Menges, F. S. Merritt, H. Mes, N. Meyer, A. Michelini, S. Mihara, G. Mikenberg, D. J. Miller, S. Moed, W. Mohr, T. Mori, A. Mutter, K. Nagai, I. Nakamura, H. Nanjo, H. A. Neal, R. Nisius, S. W. O'Neale, A. Oh, M. J. Oreglia, S. Orito, C. Pahl, G. Pásztor, J. R. Pater, J. E. Pilcher, J. Pinfold, D. E. Plane, B. Poli, O. Pooth, M. Przybycień, A. Quadt, K. Rabbertz, C. Rembser, P. Renkel, J. M. Roney, Y. Rozen, K. Runge, K. Sachs, T. Saeki, E. K.G. Sarkisyan, A. D. Schaile, O. Schaile, P. Scharff-Hansen, J. Schieck, T. Schörner-Sadenius, M. Schröder, M. Schumacher, W. G. Scott, R. Seuster, T. G. Shears, B. C. Shen, P. Sherwood, A. Skuja, A. M. Smith, R. Sobie, S. Söldner-Rembold, F. Spano, A. Stahl, D. Strom, R. Ströhmer, S. Tarem, M. Tasevsky, R. Teuscher, M. A. Thomson, E. Torrence, D. Toya, P. Tran, I. Trigger, Z. Trócsányi, E. Tsur, M. F. Turner-Watson, I. Ueda, B. Ujvári, C. F. Vollmer, P. Vannerem, R. Vértesi, M. Verzocchi, H. Voss, J. Vossebeld, C. P. Ward, D. R. Ward, P. M. Watkins, A. T. Watson, N. K. Watson, P. S. Wells, T. Wengler, N. Wermes, G. W. Wilson, J. A. Wilson, G. Wolf, T. R. Wyatt, S. Yamashita, D. Zer-Zion, L. Zivkovic

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

62 Citations (Scopus)

Abstract

Anomalous quartic couplings between the electroweak gauge bosons may contribute to the ννγγ and qq̄γγ final states produced in e⁺e^- collisions. This analysis uses the LEP2 OPAL data sample at center-of-mass energies up to 209 GeV. Event selections identify ννγγ and qq̄γγ events in which the two photons are reconstructed within the detector acceptance. The cross section for the process e⁺e^-→qq̄γγ is measured. Averaging over all energies, the ratio of the observed e ⁺e^-→qq̄γγ cross section to the standard model expectation is R(data/SM) = 0.92±0.07±0.04, where the errors represent the statistical and systematic uncertainties respectively. The ννγγ and qq̄γγ data are used to constrain possible anomalous W⁺W^- γγ and ZZγγ couplings. Combining with previous OPAL results from the W ⁺ W^- γ final state, the 95% confidence level limits on the anomalous coupling parameters a₀^Z, a _c^Z, a₀^W and a_c ^W are found to be -0.007 GeV^-2<a₀ ^Z/Λ² <0.023 GeV^-2, -0.029 GeV ^-2<a_c^Z/Λ²<0.029 GeV^-2, -0.020 GeV^-2<a₀^W/ Λ²<0.020 GeV^-2, -0.052 GeV ^-2<a_c^W/Λ²<0.037 GeV^-2, where Λ is the energy scale of the new physics. Limits found when allowing two or more parameters to vary are also presented.

Original language	English
Article number	032005
Pages (from-to)	032005-1-032005-11
Journal	Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume	70
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevD.70.032005
Publication status	Published - Aug 15 2004
Externally published	Yes

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

Access to Document

10.1103/PhysRevD.70.032005

Cite this

Abbiendi, G., Ainsley, C., Åkesson, P. F., Alexander, G., Allison, J., Amaral, P., Anagnostou, G., Anderson, K. J., Asai, S., Axen, D., Azuelos, G., Bailey, I., Barberio, E., Barillari, T., Barlow, R. J., Batley, R. J., Bechtle, P., Behnke, T., Bell, K. W., ... Zivkovic, L. (2004). Constraints on anomalous quartic gauge boson couplings from ννγγ and qq̄γγ events at CERN LEP2. Physical Review D - Particles, Fields, Gravitation and Cosmology, 70(3), 032005-1-032005-11. [032005]. https://doi.org/10.1103/PhysRevD.70.032005

Abbiendi, G, Ainsley, C, Åkesson, PF, Alexander, G, Allison, J, Amaral, P, Anagnostou, G, Anderson, KJ, Asai, S, Axen, D, Azuelos, G, Bailey, I, Barberio, E, Barillari, T, Barlow, RJ, Batley, RJ, Bechtle, P, Behnke, T, Bell, KW, Bell, PJ, Bella, G, Bellerive, A, Benelli, G, Bethke, S, Biebel, O, Boeriu, O, Bock, P, Boutemeur, M, Braibant, S, Brigliadori, L, Brown, RM, Buesser, K, Burckhart, HJ, Campana, S, Carnegie, RK, Carter, AA, Carter, JR, Chang, CY, Charlton, DG, Ciocca, C, Csilling, A, Cuffiani, M, Dado, S, de Roeck, A, de Wolf, EA, Desch, K, Dienes, B, Donkers, M, Dubbert, J, Duchovni, E, Duckeck, G, Duerdoth, IP, Etzion, E, Fabbri, F, Feld, L, Ferrari, P, Fiedler, F, Fleck, I, Ford, M, Frey, A, Gagnon, P, Gary, JW, Gaycken, G, Geich-Gimbel, C, Giacomelli, G, Giacomelli, P, Giunta, M, Goldberg, J, Gross, E, Grunhaus, J, Gruwé, M, Günther, PO, Gupta, A, Hajdu, C, Hamann, M, Hanson, GG, Harel, A, Hauschild, M, Hawkes, CM, Hawkings, R, Hemingway, RJ, Herten, G, Heuer, RD, Hill, JC, Hoffman, K, Horvath, D, Igo-Kemenes, P, Ishii, K, Jeremie, H, Jovanovic, P, Junk, TR, Kanaya, N, Kanzaki, J, Karlen, D, Kawagoe, K, Kawamoto, T, Keeler, RK, Kellogg, RG, Kennedy, BW, Kluth, S, Kobayashi, T, Kobel, M, Komamiya, S, Kramer, T, Krieger, P, von Krogh, J, Kruger, K, Kuhl, T, Kupper, M, Lafferty, GD, Landsman, H, Lanske, D, Layter, JG, Lellouch, D, Letts, J, Levinson, L, Lillich, J, Lloyd, SL, Loebinger, FK, Lu, J, Ludwig, A, Ludwig, J, Mader, W, Marcellini, S, Martin, AJ, Masetti, G, Mashimo, T, Mättig, P, McKenna, J, McPherson, RA, Meijers, F, Menges, W, Merritt, FS, Mes, H, Meyer, N, Michelini, A, Mihara, S, Mikenberg, G, Miller, DJ, Moed, S, Mohr, W, Mori, T, Mutter, A, Nagai, K, Nakamura, I, Nanjo, H, Neal, HA, Nisius, R, O'Neale, SW, Oh, A, Oreglia, MJ, Orito, S, Pahl, C, Pásztor, G, Pater, JR, Pilcher, JE, Pinfold, J, Plane, DE, Poli, B, Pooth, O, Przybycień, M, Quadt, A, Rabbertz, K, Rembser, C, Renkel, P, Roney, JM, Rozen, Y, Runge, K, Sachs, K, Saeki, T, Sarkisyan, EKG, Schaile, AD, Schaile, O, Scharff-Hansen, P, Schieck, J, Schörner-Sadenius, T, Schröder, M, Schumacher, M, Scott, WG, Seuster, R, Shears, TG, Shen, BC, Sherwood, P, Skuja, A, Smith, AM, Sobie, R, Söldner-Rembold, S, Spano, F, Stahl, A, Strom, D, Ströhmer, R, Tarem, S, Tasevsky, M, Teuscher, R, Thomson, MA, Torrence, E, Toya, D, Tran, P, Trigger, I, Trócsányi, Z, Tsur, E, Turner-Watson, MF, Ueda, I, Ujvári, B, Vollmer, CF, Vannerem, P, Vértesi, R, Verzocchi, M, Voss, H, Vossebeld, J, Ward, CP, Ward, DR, Watkins, PM, Watson, AT, Watson, NK, Wells, PS, Wengler, T, Wermes, N, Wilson, GW, Wilson, JA, Wolf, G, Wyatt, TR, Yamashita, S, Zer-Zion, D & Zivkovic, L 2004, 'Constraints on anomalous quartic gauge boson couplings from ννγγ and qq̄γγ events at CERN LEP2', Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 70, no. 3, 032005, pp. 032005-1-032005-11. https://doi.org/10.1103/PhysRevD.70.032005

@article{48c7aaaaf26e471ab34a3cf0de4dac7a,

title = "Constraints on anomalous quartic gauge boson couplings from ννγγ and q{\=q}γγ events at CERN LEP2",

abstract = "Anomalous quartic couplings between the electroweak gauge bosons may contribute to the ννγγ and q{\=q}γγ final states produced in e+e- collisions. This analysis uses the LEP2 OPAL data sample at center-of-mass energies up to 209 GeV. Event selections identify ννγγ and q{\=q}γγ events in which the two photons are reconstructed within the detector acceptance. The cross section for the process e+e-→q{\=q}γγ is measured. Averaging over all energies, the ratio of the observed e +e-→q{\=q}γγ cross section to the standard model expectation is R(data/SM) = 0.92±0.07±0.04, where the errors represent the statistical and systematic uncertainties respectively. The ννγγ and q{\=q}γγ data are used to constrain possible anomalous W+W- γγ and ZZγγ couplings. Combining with previous OPAL results from the W + W- γ final state, the 95% confidence level limits on the anomalous coupling parameters a0Z, a cZ, a0W and ac W are found to be -0.007 GeV-20 Z/Λ2 <0.023 GeV-2, -0.029 GeV -2cZ/Λ2<0.029 GeV-2, -0.020 GeV-20W/ Λ2<0.020 GeV-2, -0.052 GeV -2cW/Λ2<0.037 GeV-2, where Λ is the energy scale of the new physics. Limits found when allowing two or more parameters to vary are also presented.",

author = "G. Abbiendi and C. Ainsley and {\AA}kesson, {P. F.} and G. Alexander and J. Allison and P. Amaral and G. Anagnostou and Anderson, {K. J.} and S. Asai and D. Axen and G. Azuelos and I. Bailey and E. Barberio and T. Barillari and Barlow, {R. J.} and Batley, {R. J.} and P. Bechtle and T. Behnke and Bell, {K. W.} and Bell, {P. J.} and G. Bella and A. Bellerive and G. Benelli and S. Bethke and O. Biebel and O. Boeriu and P. Bock and M. Boutemeur and S. Braibant and L. Brigliadori and Brown, {R. M.} and K. Buesser and Burckhart, {H. J.} and S. Campana and Carnegie, {R. K.} and Carter, {A. A.} and Carter, {J. R.} and Chang, {C. Y.} and Charlton, {D. G.} and C. Ciocca and A. Csilling and M. Cuffiani and S. Dado and {de Roeck}, A. and {de Wolf}, {E. A.} and K. Desch and B. Dienes and M. Donkers and J. Dubbert and E. Duchovni and G. Duckeck and Duerdoth, {I. P.} and E. Etzion and F. Fabbri and L. Feld and P. Ferrari and F. Fiedler and I. Fleck and M. Ford and A. Frey and P. Gagnon and Gary, {J. W.} and G. Gaycken and C. Geich-Gimbel and G. Giacomelli and P. Giacomelli and M. Giunta and J. Goldberg and E. Gross and J. Grunhaus and M. Gruw{\'e} and G{\"u}nther, {P. O.} and A. Gupta and C. Hajdu and M. Hamann and Hanson, {G. G.} and A. Harel and M. Hauschild and Hawkes, {C. M.} and R. Hawkings and Hemingway, {R. J.} and G. Herten and Heuer, {R. D.} and Hill, {J. C.} and K. Hoffman and D. Horvath and P. Igo-Kemenes and K. Ishii and H. Jeremie and P. Jovanovic and Junk, {T. R.} and N. Kanaya and J. Kanzaki and D. Karlen and K. Kawagoe and T. Kawamoto and Keeler, {R. K.} and Kellogg, {R. G.} and Kennedy, {B. W.} and S. Kluth and T. Kobayashi and M. Kobel and S. Komamiya and T. Kramer and P. Krieger and {von Krogh}, J. and K. Kruger and T. Kuhl and M. Kupper and Lafferty, {G. D.} and H. Landsman and D. Lanske and Layter, {J. G.} and D. Lellouch and J. Letts and L. Levinson and J. Lillich and Lloyd, {S. L.} and Loebinger, {F. K.} and J. Lu and A. Ludwig and J. Ludwig and W. Mader and S. Marcellini and Martin, {A. J.} and G. Masetti and T. Mashimo and P. M{\"a}ttig and J. McKenna and McPherson, {R. A.} and F. Meijers and W. Menges and Merritt, {F. S.} and H. Mes and N. Meyer and A. Michelini and S. Mihara and G. Mikenberg and Miller, {D. J.} and S. Moed and W. Mohr and T. Mori and A. Mutter and K. Nagai and I. Nakamura and H. Nanjo and Neal, {H. A.} and R. Nisius and O'Neale, {S. W.} and A. Oh and Oreglia, {M. J.} and S. Orito and C. Pahl and G. P{\'a}sztor and Pater, {J. R.} and Pilcher, {J. E.} and J. Pinfold and Plane, {D. E.} and B. Poli and O. Pooth and M. Przybycie{\'n} and A. Quadt and K. Rabbertz and C. Rembser and P. Renkel and Roney, {J. M.} and Y. Rozen and K. Runge and K. Sachs and T. Saeki and Sarkisyan, {E. K.G.} and Schaile, {A. D.} and O. Schaile and P. Scharff-Hansen and J. Schieck and T. Sch{\"o}rner-Sadenius and M. Schr{\"o}der and M. Schumacher and Scott, {W. G.} and R. Seuster and Shears, {T. G.} and Shen, {B. C.} and P. Sherwood and A. Skuja and Smith, {A. M.} and R. Sobie and S. S{\"o}ldner-Rembold and F. Spano and A. Stahl and D. Strom and R. Str{\"o}hmer and S. Tarem and M. Tasevsky and R. Teuscher and Thomson, {M. A.} and E. Torrence and D. Toya and P. Tran and I. Trigger and Z. Tr{\'o}cs{\'a}nyi and E. Tsur and Turner-Watson, {M. F.} and I. Ueda and B. Ujv{\'a}ri and Vollmer, {C. F.} and P. Vannerem and R. V{\'e}rtesi and M. Verzocchi and H. Voss and J. Vossebeld 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 Wilson, {G. W.} and Wilson, {J. A.} and G. Wolf and Wyatt, {T. R.} and S. Yamashita and D. Zer-Zion and L. Zivkovic",

year = "2004",

month = aug,

day = "15",

doi = "10.1103/PhysRevD.70.032005",

language = "English",

volume = "70",

pages = "032005--1--032005--11",

journal = "Physical review D: Particles and fields",

issn = "1550-7998",

publisher = "American Institute of Physics",

number = "3",

}

TY - JOUR

T1 - Constraints on anomalous quartic gauge boson couplings from ννγγ and qq̄γγ events at CERN LEP2

AU - Abbiendi, G.

AU - Ainsley, C.

AU - Åkesson, P. F.

AU - Alexander, G.

AU - Allison, J.

AU - Amaral, P.

AU - Anagnostou, G.

AU - Anderson, K. J.

AU - Asai, S.

AU - Axen, D.

AU - Azuelos, G.

AU - Bailey, I.

AU - Barberio, E.

AU - Barillari, T.

AU - Barlow, R. J.

AU - Batley, R. J.

AU - Bechtle, P.

AU - Behnke, T.

AU - Bell, K. W.

AU - Bell, P. J.

AU - Bella, G.

AU - Bellerive, A.

AU - Benelli, G.

AU - Bethke, S.

AU - Biebel, O.

AU - Boeriu, O.

AU - Bock, P.

AU - Boutemeur, M.

AU - Braibant, S.

AU - Brigliadori, L.

AU - Brown, R. M.

AU - Buesser, K.

AU - Burckhart, H. J.

AU - Campana, S.

AU - Carnegie, R. K.

AU - Carter, A. A.

AU - Carter, J. R.

AU - Chang, C. Y.

AU - Charlton, D. G.

AU - Ciocca, C.

AU - Csilling, A.

AU - Cuffiani, M.

AU - Dado, S.

AU - de Roeck, A.

AU - de Wolf, E. A.

AU - Desch, K.

AU - Dienes, B.

AU - Donkers, M.

AU - Dubbert, J.

AU - Duchovni, E.

AU - Duckeck, G.

AU - Duerdoth, I. P.

AU - Etzion, E.

AU - Fabbri, F.

AU - Feld, L.

AU - Ferrari, P.

AU - Fiedler, F.

AU - Fleck, I.

AU - Ford, M.

AU - Frey, A.

AU - Gagnon, P.

AU - Gary, J. W.

AU - Gaycken, G.

AU - Geich-Gimbel, C.

AU - Giacomelli, G.

AU - Giacomelli, P.

AU - Giunta, M.

AU - Goldberg, J.

AU - Gross, E.

AU - Grunhaus, J.

AU - Gruwé, M.

AU - Günther, P. O.

AU - Gupta, A.

AU - Hajdu, C.

AU - Hamann, M.

AU - Hanson, G. G.

AU - Harel, A.

AU - Hauschild, M.

AU - Hawkes, C. M.

AU - Hawkings, R.

AU - Hemingway, R. J.

AU - Herten, G.

AU - Heuer, R. D.

AU - Hill, J. C.

AU - Hoffman, K.

AU - Horvath, D.

AU - Igo-Kemenes, P.

AU - Ishii, K.

AU - Jeremie, H.

AU - Jovanovic, P.

AU - Junk, T. R.

AU - Kanaya, N.

AU - Kanzaki, J.

AU - Karlen, D.

AU - Kawagoe, K.

AU - Kawamoto, T.

AU - Keeler, R. K.

AU - Kellogg, R. G.

AU - Kennedy, B. W.

AU - Kluth, S.

AU - Kobayashi, T.

AU - Kobel, M.

AU - Komamiya, S.

AU - Kramer, T.

AU - Krieger, P.

AU - von Krogh, J.

AU - Kruger, K.

AU - Kuhl, T.

AU - Kupper, M.

AU - Lafferty, G. D.

AU - Landsman, H.

AU - Lanske, D.

AU - Layter, J. G.

AU - Lellouch, D.

AU - Letts, J.

AU - Levinson, L.

AU - Lillich, J.

AU - Lloyd, S. L.

AU - Loebinger, F. K.

AU - Lu, J.

AU - Ludwig, A.

AU - Ludwig, J.

AU - Mader, W.

AU - Marcellini, S.

AU - Martin, A. J.

AU - Masetti, G.

AU - Mashimo, T.

AU - Mättig, P.

AU - McKenna, J.

AU - McPherson, R. A.

AU - Meijers, F.

AU - Menges, W.

AU - Merritt, F. S.

AU - Mes, H.

AU - Meyer, N.

AU - Michelini, A.

AU - Mihara, S.

AU - Mikenberg, G.

AU - Miller, D. J.

AU - Moed, S.

AU - Mohr, W.

AU - Mori, T.

AU - Mutter, A.

AU - Nagai, K.

AU - Nakamura, I.

AU - Nanjo, H.

AU - Neal, H. A.

AU - Nisius, R.

AU - O'Neale, S. W.

AU - Oh, A.

AU - Oreglia, M. J.

AU - Orito, S.

AU - Pahl, C.

AU - Pásztor, G.

AU - Pater, J. R.

AU - Pilcher, J. E.

AU - Pinfold, J.

AU - Plane, D. E.

AU - Poli, B.

AU - Pooth, O.

AU - Przybycień, M.

AU - Quadt, A.

AU - Rabbertz, K.

AU - Rembser, C.

AU - Renkel, P.

AU - Roney, J. M.

AU - Rozen, Y.

AU - Runge, K.

AU - Sachs, K.

AU - Saeki, T.

AU - Sarkisyan, E. K.G.

AU - Schaile, A. D.

AU - Schaile, O.

AU - Scharff-Hansen, P.

AU - Schieck, J.

AU - Schörner-Sadenius, T.

AU - Schröder, M.

AU - Schumacher, M.

AU - Scott, W. G.

AU - Seuster, R.

AU - Shears, T. G.

AU - Shen, B. C.

AU - Sherwood, P.

AU - Skuja, A.

AU - Smith, A. M.

AU - Sobie, R.

AU - Söldner-Rembold, S.

AU - Spano, F.

AU - Stahl, A.

AU - Strom, D.

AU - Ströhmer, R.

AU - Tarem, S.

AU - Tasevsky, M.

AU - Teuscher, R.

AU - Thomson, M. A.

AU - Torrence, E.

AU - Toya, D.

AU - Tran, P.

AU - Trigger, I.

AU - Trócsányi, Z.

AU - Tsur, E.

AU - Turner-Watson, M. F.

AU - Ueda, I.

AU - Ujvári, B.

AU - Vollmer, C. F.

AU - Vannerem, P.

AU - Vértesi, R.

AU - Verzocchi, M.

AU - Voss, H.

AU - Vossebeld, J.

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 - Wilson, G. W.

AU - Wilson, J. A.

AU - Wolf, G.

AU - Wyatt, T. R.

AU - Yamashita, S.

AU - Zer-Zion, D.

AU - Zivkovic, L.

PY - 2004/8/15

Y1 - 2004/8/15

N2 - Anomalous quartic couplings between the electroweak gauge bosons may contribute to the ννγγ and qq̄γγ final states produced in e+e- collisions. This analysis uses the LEP2 OPAL data sample at center-of-mass energies up to 209 GeV. Event selections identify ννγγ and qq̄γγ events in which the two photons are reconstructed within the detector acceptance. The cross section for the process e+e-→qq̄γγ is measured. Averaging over all energies, the ratio of the observed e +e-→qq̄γγ cross section to the standard model expectation is R(data/SM) = 0.92±0.07±0.04, where the errors represent the statistical and systematic uncertainties respectively. The ννγγ and qq̄γγ data are used to constrain possible anomalous W+W- γγ and ZZγγ couplings. Combining with previous OPAL results from the W + W- γ final state, the 95% confidence level limits on the anomalous coupling parameters a0Z, a cZ, a0W and ac W are found to be -0.007 GeV-20 Z/Λ2 <0.023 GeV-2, -0.029 GeV -2cZ/Λ2<0.029 GeV-2, -0.020 GeV-20W/ Λ2<0.020 GeV-2, -0.052 GeV -2cW/Λ2<0.037 GeV-2, where Λ is the energy scale of the new physics. Limits found when allowing two or more parameters to vary are also presented.

AB - Anomalous quartic couplings between the electroweak gauge bosons may contribute to the ννγγ and qq̄γγ final states produced in e+e- collisions. This analysis uses the LEP2 OPAL data sample at center-of-mass energies up to 209 GeV. Event selections identify ννγγ and qq̄γγ events in which the two photons are reconstructed within the detector acceptance. The cross section for the process e+e-→qq̄γγ is measured. Averaging over all energies, the ratio of the observed e +e-→qq̄γγ cross section to the standard model expectation is R(data/SM) = 0.92±0.07±0.04, where the errors represent the statistical and systematic uncertainties respectively. The ννγγ and qq̄γγ data are used to constrain possible anomalous W+W- γγ and ZZγγ couplings. Combining with previous OPAL results from the W + W- γ final state, the 95% confidence level limits on the anomalous coupling parameters a0Z, a cZ, a0W and ac W are found to be -0.007 GeV-20 Z/Λ2 <0.023 GeV-2, -0.029 GeV -2cZ/Λ2<0.029 GeV-2, -0.020 GeV-20W/ Λ2<0.020 GeV-2, -0.052 GeV -2cW/Λ2<0.037 GeV-2, where Λ is the energy scale of the new physics. Limits found when allowing two or more parameters to vary are also presented.

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U2 - 10.1103/PhysRevD.70.032005

DO - 10.1103/PhysRevD.70.032005

M3 - Article

AN - SCOPUS:33845740818

VL - 70

SP - 032005-1-032005-11

JO - Physical review D: Particles and fields

JF - Physical review D: Particles and fields

SN - 1550-7998

IS - 3

M1 - 032005

ER -

Constraints on anomalous quartic gauge boson couplings from ννγγ and qq̄γγ events at CERN LEP2

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