Title: Study of Z Boson Pair Production at LEP 

       
The pair production of Z bosons is studied using the data
collected by the L3 detector at LEP in e+e- 
interactions at centre-of-mass energy  from 183 GeV up to 202 GeV
corresponding to 460 pb^-1 of integrated luminosity.
The cross sections of this process are measured at each centre-of-mass.
Moreover is investigated the rate of ZZ events with b-quark content
and their cross section is measured.

A search for anomalous triple neutral gauge boson couplings, forbidden in the
Standard Model, is performed. No evidence for those couplings is found
and limits on their values are set.



Parallel session: 5,11
Plenary Talks   : 6a, 7a