Particle distribution function in nonequilibrium plasmas.

A universal distribution function is derived for plasma particles in a magnetic field in which the fluctuation field consists of a equilibrium Coulomb field and a non-equilibrium photon/plasmon field. The distribution function obeys a Maxwellian f(E) ~ square rootEe(-E/E(T))at E>E(O) where gamma(E) is given by E(O)/E(T) -3/4 and E(O) is the transition energy. The distribution is a result of the combination of an additive (Coulomb field) and a multiplicative (renormalized Coulomb field by non-equilibrium photon/plasmon field) stochastic processes.