1. Experimental Setup e- TAPS Crystal Ball  Tagged-Photon Spectrometer
MWPC
PID
Target Cell
A2-Collaboration
Crystal MAMI

2. Experimental Setup Crystal Ball TAPS 672 NaI(Tl) crystals (l=15.7 X0)
truncated triangular pyramids
E/E= 1.7/E0.4%
=2-3o, =2o/sin
PMT readout -> Level 1 trigger
TAPS
510 BaF2 crystals (l=12 X0)
hexagonal cross section
E/E= 1 GeV
PMT readout -> Level 1 trigger
A2-Collaboration
Crystal MAMI

3. Experimental Programme 2004/5
single pion photoprodcution,  meson production
magnetic moment of the +(1232) via p(,'N)
double pion production off the proton  PT near threshold  2nd resonance region
double pion production off nuclei (12C, 16O, 40Ca, 208Pb)  A-dependence of M()  Medium effects
Branching Ratios for (photoproduced)  rare decays  PT  C, CP invariance
 Mass from photoproduction threshold point
A2-Collaboration
Crystal MAMI

4. Post Upgrade Experimental Programme
magnetic moment of S+11(1535) via p(,p)
magnetic moment of S011(1535) via p(,n) (pilot study)
p  K0+ pilot study, recoil polarisation from +  0p
recoil polarimetry  Cx', Ox'
Medium modification of M() (E): A(,) 0
Branching Ratios for (photoproduced)  and ' rare decays  PT  C, CP invariance
pion photoprodcution circ. pol. photons and long. pol. d-target  E, neutron GDH contribution lin. pol. photons and long. pol. p-target  G  P11(1440)
A2-Collaboration
Crystal MAMI