In the ADS method (I. Dunietz, Phys. Rev. Lett. B 270 (1991) 75; Phys. Rev. Lett. D 52 (1995) 3048; D. Atwood, I. Dunietz and A. Soni, Phys. Rev. Lett. 78, 3257 (1997)),
is measured from the study of
decays, where
mesons decay into non
eigenstate final states. The suppression of
transition with respect to the
one is partly overcome by the study of decays of the
meson in final states which can proceed in two ways: either through a favored
decay followed by a doubly-Cabibbo-suppressed
decay, or through a suppressed
decay followed by a Cabibbo-favored
decay.
Neglecting
-mixing effects, which in the SM give very small corrections to \g\ and do not affect the
measurement, the measured ratios
and
are related to the
and
mesons' decay parameters through the following relations:
with:
In case of the
analysis with
we use the following ratios:
The used observables are connected to the "classical"
and
set by simple relations:
and
.
The values of
and
are taken from
our study of charm mixing or the
CLEO-c collaboration results. The ratio
has been
measured in different experiments and we take the average value from
PDG.