For a central potential, the amplitude for this process may be expressed as a sum of a bunch of partial waves over all angular momenta.
A formula in the analysis of this process relates a certain object to the time ordered expectation of free fields by putting some Klein-Gordon operators in front to isolate only asymptotic states. That is the LSZ reduction formula. The final state in this process is equal to initial state plus a Green's function times the final state. For a central potential, the amplitude for this process may be expressed as a sum of a bunch of partial waves over all angular momenta. Taking only the first term of the Lippmann-Schwinger equation gives the Born approximation for the amplitude of this process. This process is more complete for lower values of the impact parameter, and its final states are calculated with the S-matrix. The rate of this process is equal to the flux times the number of particles in the target times the cross section. For 10 points, name this process in which particles are shot at things and deflected.
A formula in the analysis of this process relates a certain object to the time ordered expectation of free fields by putting some Klein-Gordon operators in front to isolate only asymptotic states.
scattering