In experiment with the LKr calorimeter prototype and the
scattered electrons tagging system of the KEDR, Delbruck
scattering was studied.
Diagram of Delbruck scattering.
The differential cross section of photon scattering
as a function of the momentum transfer Delta
for a molecule of bismuth germanate is shown.
The experimental data (circles) and simulation (solid line).
The cross section has been measured with a precision 10 times
better than in previous experiments.
Reference:
H.Zh.Akhmadaliev et al., "Delbruck
scattering in a Coulomb field at energies 140-450 MeV".
Phys. Rev. C58 (1998) 2844.
[pdf]
