One perturbative solution to this kind of problem takes the form of an infinite series of Feynmandiagrams that diverges.
One perturbative solution to this kind of problem takes the form of an infinite series of Feynmandiagrams that diverges. When finding an approximation for this kind of problem in the case of longwavelengths, the exponential term simply vanishes and all that must be integrated is the interactionpotential; that is a special case of the Born Approximation. In quantum mechanics, this kind ofproblem usually is solved by finding the associated (*) amplitude of a wave, given that a plane waveencounters a potential and is transformed into a spherical wave. Classically, this type of problem istypically solved by finding the namesake angle given the impact parameter. For 10 points, name thiskind of process in which a particle changes direction after a collision.
One perturbative solution to this kind of problem takes the form of an infinite series of Feynmandiagrams that diverges.
scattering [accept collision]