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arXiv · hep-ph/9407311

Hints of New Flavor Physics at LEP?

B. Holdom
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Abstract

A massive gauge boson coupling to the third family but not lighter families mixes with the $Z$. The $Z$ partial width to $b\overline{b}$ increases, the $τ$ asymmetry parameter increases, the invisible width of the $Z$ decreases, and $α_s(m_Z)$ decreases, all in a manner consistent with present data.

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B. Holdom. 1994-09-29. Hints of New Flavor Physics at LEP?. https://doi.org/10.1016/0370-2693(94)91142-8

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