Scattering of an ensemble of photons taking their space – time localisation into account

A problem of scattering of an ensemble of photons by material particles is solved. The vector potential of each of the incident photons scattered by particles is described by a nonspreading wave packet. The expressions for cross sections for elastic and inelastic scattering of electromagnetic radiation are derived taking the space – time localisation of photons into account. The possible experiments for verifying these theoretical results are discussed.