E1 & E2 breakup of 8B
One-proton bound state known:
7Be(0p3/2+0p1/2)|2+ at -0.137 MeV
Need spectroscopy of non-resonant
continuuum!
B(E1) & B(E2) for transition ps,d need to be
accurately known
E1 and E2 amplitudes interfere in p||(7Be)
momentum distribution
so measure relative E2/E1 amplitudes from
asymmetries.