Reviews of topical problems

New particle in e+e-annihilation: the heavy lepton τ±

A review is presented of experimental data that provide evidence for the existence of a heavy charged lepton $\tau^\pm$. The properties of the $\tau$ particle extracted from experimental data are compared with theoretical expectations. A summary of necessary further measurements is provided. The possible theoretical significance of the new particle is briefly discussed.

PACS: 13.10.+q, 14.60.−z
DOI: 10.1070/PU1978v021n03ABEH005530
Citation: Azimov Ya I, Frankfurt L L, Khoze V A "New particle in e+e-annihilation: the heavy lepton τ±" Sov. Phys. Usp. 21 225–239 (1978)
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:   ,   ,    «  e+e- —  τ±» 124 459–485 (1978); DOI: 10.3367/UFNr.0124.197803d.0459

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