Phys. Rev. D 57, R3817 - R3821 (1998)

Zγ production in pp̅ collisions at sqrt[s]=1.8 TeV and limits on anomalous ZZγ and Zγγ couplings

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B. Abbott et al. (D0 Collaboration)
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Rapid Communication Received 29 October 1997

We present a study of Zγ+X production in pp̅ collisions at sqrt[s]=1.8 TeV from 97 (87) pb-1 of data collected in the eeγ (μμγ) decay channel with the D0 detector at Fermilab. The event yield and kinematic characteristics are consistent with the standard model predictions. We obtain limits on anomalous ZZγ and Zγγ couplings for form factor scales Λ=500 GeV and Λ=750 GeV. Combining this analysis with our previous results yields 95% C.L. limits |h30Z|<0.36, |h40Z|<0.05, |h30γ|<0.37, and |h40γ|<0.05 for a form factor scale Λ=750 GeV.


©1998 The American Physical Society

URL: http://link.aps.org/abstract/PRD/v57/pR3817
DOI: 10.1103/PhysRevD.57.R3817
PACS: 14.70.Hp, 13.40.Em, 13.85.Qk

* Also at Universidad San Francisco de Quito, Quito, Ecuador.
Also at IHEP, Beijing, China.

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