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Constraints on anomalous quartic gauge boson couplings fromνν¯γγandqq
Author(s) -
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. L. 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. E. Vickey Boeriu,
P. Bock,
M. Boutemeur,
S. Braibant,
L. Brigliadori,
R. M. Brown,
K. Buesser,
H. Burckhart,
S. Campana,
R.K. Carnegie,
A. A. Carter,
J. R. Carter,
C.Y. Chang,
D. G. Charlton,
C. Ciocca,
Á. Csilling,
M. Cuffiani,
S. Dado,
A. De Roeck,
E. A. De Wolf,
S. De Cecco,
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. Gag,
J. W. Gary,
G. Gaycken,
Ch. Geich-Gimbel,
P. Giacomelli,
M. Giunta,
J. Goldberg,
E. Ros,
J. Grunhaus,
M. Gruwé,
P. O. Günther,
A. Gupta,
C. Hajdu,
M. Hamann,
G.G. Hanson,
A. Harel,
M. Hauschild,
C. M. Hawkes,
R. J. Hawkings,
R.J. Hemingway,
G. Herten,
Rolf-Dieter Heuer,
J. C. Hill,
K. D. Hoffman,
D. Horváth,
P. Igo-Kemenes,
K. Ishii,
H. Jérémie,
P. Jovanović,
T. R. Junk,
N. Kanaya,
J. Kanzaki,
D. Karlen,
K. Kawagoe,
T. Kawamoto,
R. Keeler,
R. G. Kellogg,
B. W. Kennedy,
S. Kluth,
T. Kobayashi,
M. Kobel,
S. Komamiya,
T. Krämer,
P. Krieger,
J. von Krogh,
K. Krüger,
T. Kühl,
M. Kupper,
G. Lafferty,
H. Landsman,
D. Lanske,
J. G. Layter,
D. Lellouch,
J. Letts,
Levinson,
J. Lillich,
S. L. Lloyd,
F. K. Loebinger,
J. Lu,
A. Ludwig,
J. Ludwig,
Wolfgang Mader,
S. Marcellini,
A. J. Martin,
G. Masetti,
T. Mashimo,
P. Mättig,
J. A. McKenna,
R. A. McPherson,
F. Meijers,
W. Menges,
F. S. Merritt,
H. Mes,
N. T. Meyer,
A. Michelini,
S. Mihara,
G. Mikenberg,
D.J. Miller,
S. Moêd,
W. Mohr,
T. Mori,
A. Mutter,
K. Nagai,
I. Nakamura,
H. Nanjo,
H. A. Neal,
R. Nisius,
S.W. OʼNeale,
A. Oh,
M. J. Oreglia,
S. Orito,
C. Pahl,
G. Pásżtor,
J. R. Pater,
J. E. Pilcher,
J. L. 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. Shears,
B. C. Shen,
P. Sherwood,
A. Skuja,
Andrew Smith,
R. Sobie,
S. SöldnerRembold,
F. Spanò,
A. Stahl,
David Ström,
R. Ströhmer,
S. Tarem,
M. Taševský,
R. J. Teuscher,
M. Thomson,
E. Torrence,
D. Toya,
P. Tran,
I. M. Trigger,
Z. L. Trocsanyi,
E. Tsur,
M. F. Watson,
I. Ueda,
B. Ujvári,
C.F. Vollmer,
P. Vannerem,
Róbert Vértesi,
M. Verzocchi,
H. Voss,
J. H. Vossebeld,
C. P. Ward,
D. R. Ward,
P. M. Watkins,
A. T. Watson,
N. K. Watson,
P. S. Wells,
T. Wengler,
N. Wermes,
G. Wilson,
W. Wiedenmann,
T. R. Wyatt,
Yamashita Shinji,
D. Zer-Zion,
L. Živković
Publication year - 2004
Publication title -
physical review. d. particles, fields, gravitation, and cosmology/physical review. d, particles, fields, gravitation, and cosmology
Language(s) - English
Resource type - Journals
eISSN - 1550-7998
pISSN - 1550-2368
DOI - 10.1103/physrevd.70.032005
Subject(s) - physics , particle physics , coupling (piping) , boson , gauge boson , gauge theory , mechanical engineering , engineering
Anomalous quartic couplings between the electroweak gauge bosons maycontribute to the vv gamma gamma and qq gamma gamma final states produced ine+e- collisions. This analysis uses the LEP2 OPAL data sample at centre-of-massenergies up to 209 GeV. Event selections identify vv gamma gamma and qq gammagamma events in which the two photons are reconstructed within the detectoracceptance. The cross-section for the process e+e- -> qq gamma gamma ismeasured. Averaging over all energies, the ratio of the observed e+e- -> qqgamma gamma cross-section to the Standard Model expectation is R(data/SM) =0.92 +- 0.07 +- 0.04 where the errors represent the statistical and systematicuncertainties respectively. The vv gamma gamma and qq gamma gamma data are usedto constrain possible anomalous W+W- gamma gamma and ZZ gamma gamma couplings.Combining with previous OPAL results from the W+W- gamma final state, the 95%confidence level limits on the anomalous coupling parameters aoz, acz, aow andacw are found to be: -0.007 GeV^-2 < aoz/Lambda^2 < 0.023 GeV^-2 -0.029 GeV^-2 < acz/Lambda^2 <0.029 GeV^-2 -0.020 GeV^-2 < aow/Lambda^2 < 0.020 GeV^-2 -0.052 GeV^-2

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