"Tau threshold experiments: status and
expectations"
KEDR
experiment
"A study of the threshold behavior of the
tau-lepton production cross
section is the most promising way of the tau mass
determination.
The most precise measurement of this kind has been
performed by the BES
collaboration in 1991. We critically analyze the
results of this
experiment and report the status of the preparation
for the new
one, planned with the KEDR detector at the VEPP-4M
collider in