Quadrupole bremsstrahlung in the scattering of identical charged bosons and fermions
Abstract
In a nonrelativistic formulation employing noncovariant perturbation theory in the Born approximation and including exchange effects, the differential cross section for bremsstrahlung is derived for scattering by identical charged particles of arbitrary spin. The problem is first treated in a general manner, giving the expression for the total direct amplitude for the complete process (photon emission in scattering) for the case where the scattering potential is arbitrary. The derivation by means of perturbation theory demonstrates the critical role played by the small momentum associated with the emitted photon. Graviton bremsstrahlung is discussed briefly and the corresponding quadrupole cross section is given by a simple comparison with the photon bremsstrahlung formula.
 Publication:

Physical Review A
 Pub Date:
 June 1981
 DOI:
 10.1103/PhysRevA.23.2851
 Bibcode:
 1981PhRvA..23.2851G