Following the formalism presented in section 1 we obtain the
time dependent decay rates for initially pure 
and 
in 
, 
:
with 
.
The parameter 
vanishes in case of 
conservation,
i.e. 
:
In the limit of small 
and even smaller 
violation we can write:
The violating parameter is best measured through the
interference term by constructing the following time dependent decay rate
asymmetry:
with 
.
