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Constraints on anomalous QGC's in e+ e- interactions from 183-GeV to 209-GeV

Research output: Contribution to journalJournal article


Journal publication date18/11/2004
JournalPhysics Letters B
Number of pages10
Original languageEnglish


The acoplanar photon pairs produced in the reaction are analysed in the 700 pb−1 of data collected by the ALEPH detector at centre-of-mass energies between 183 and 209 GeV. No deviation from the Standard Model predictions is seen in any of the distributions examined. The resulting 95% C.L. limits set on the anomalous QGCs, , , and , are , , , , where Λ is the energy scale of the new physics responsible for the anomalous couplings.