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

C. Q. Geng·K. Whisnant·B. -L. Young
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Abstract

We explore the possibility of having new physics which could account for the $l^+l^-γγ$ events with $M_{γγ}\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 $\ell^+\ell^-γγ$ events at a rate similar to that observed at LEP.

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C. Q. Geng, K. Whisnant, B. -L. Young. 1993-02-18. Right-handed Neutral Currents, Families and the LEP $l^+l^-γγ$ Events. https://arxiv.org/abs/hep-ph/9302273

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