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Constraints on anomalous quartic gauge boson couplings fromνν¯γγandqq¯γγevents at CERN LEP2
2004
Physical Review D
Anomalous quartic couplings between the electroweak gauge bosons may contribute to the vv gamma gamma and qq gamma gamma final states produced in e+e- collisions. This analysis uses the LEP2 OPAL data sample at centre-of-mass energies up to 209 GeV. Event selections identify vv gamma gamma and qq gamma gamma events in which the two photons are reconstructed within the detector acceptance. The cross-section for the process e+e- -> qq gamma gamma is measured. Averaging over all energies, the
doi:10.1103/physrevd.70.032005
fatcat:shg33l76gnc5vfzwbwitvxsk44