Thermal effects in a triplet and beam interaction in a plasma

Abstract

The dynamics of three interacting waves fulfilling the frequency and wavenumber matching conditions can be dramatically modified if a charged particle beam is added to the system. Energy is exchanged not only among the waves but also between the particles of the beam and the waves. In the present work, a model that includes these interactions is revisited, allowing a more realistic case where the beam has an initial velocity distribution. This study aims to present the role of this thermal effect over the system at the beginning of the dynamics and after the breakdown of the laminar regime of the particle beam.