Right-handed Neutral Currents, Families and the LEP $l^+l^-γγ$ Events

Details Right-handed Neutral Currents, Families and the LEP $l^+l^-γγ$ Events Right-handed Neutral Currents, Families and the LEP $l^+l^-γγ$ Events

1993-02-18

arxiv.org/abs/hep-ph/9302273v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages (LaTex file), IS-J 4917

Scientific paper

We explore the possibility of having new physics which could account for the $l^+l^-\gamma\gamma$ events with $M_{\gamma\gamma}\simeq 60\ $GeV recently reported by LEP. We consider models which contain an extra neutral gauge boson ($Z'$) that couples only to right-handed fermions. The models naturally require at least three quark and lepton families from anomaly cancellation. We find simple realizations of such models that have $\ell^+\ell^-\gamma\gamma$ events at a rate similar to that observed at LEP.

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