The paradigmatic example of VP transition form factors is 
, which has been explored above the 
-threshold
through 
-annihilation and, quite independently, in the 
interval through the
Dalitz decay 
. The global set of
experimental data, taken from ref. [13], are
displayed in Fig.(8) . Again, a simple 
-meson Breit-Wigner
gives a
rough description of the data in the two separate regions, below and
above the 
-peak. The slope parameter 
has been measured to correspond
to 
, somewhat below the
-mass. Of course the data in the higher mass region give possible
evidence for excited 
states. The situation is discussed in detail
by Donnachie and Clegg [14]. Daphne is expected
to play a major role in clarifying the whole matter.
Figure 8: Study of the transition form factor in 
decay and in the reaction 
.
Details can be found in ref.[13].
The SU(3) rotated version of the above transition 
should be observed by Daphne and, if higher energies are
reachable, its crossed version 
could be studied
too. Comparison with the 
case could be of interest when
studying SU(3)-breaking in this sector.