A Z' Model Which May Be Relevant to the New LEP Events

Abstract

A multi-Higgs model with an extra neutral gauge boson ($Z^{\prime }$) is introduced. One scalar Higgs boson ($H_2$) in this model decays dominantly into a photon pair. The $Z^{\prime }$ decay to ${\mu }^{+}{\mu }^{-}$ gets a much larger branching ratio than the $Z$ decay to this channel. The $Z{Z}^{\prime }{H}_2$ vertex provides a final state from $Z$ decay resembling the new $l^{+}{l}^{-}\gamma \gamma$ events at the LEP. Other promising phenomenology, such as $Z\to l\bar{l}{Z}^{\prime }$ is also discussed.

Comments: LaTeX, 11 pages, 1 Figure (not included, available upon request), PVAMUHEP-92-2 and FSUHEP-921126