A search for the production and non-standard decay of a Higgs boson, h, into four taus through intermediate pseudoscalars, a, is conducted on 683 pb
−1
of data collected by the ALEPH experiment at ...centre-of-mass energies from 183 to 209 GeV. No excess of events above background is observed, and exclusion limits are placed on the combined production cross section times branching ratio,
. For
m
h
< 107 GeV/
c
2
and 4 <
m
a
< 10 GeV/
c
2
,
ξ
2
> 1 is excluded at the 95% confidence level.
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