Stimulated scattering of massless fermionic neutrinos by plasmas

The Weyl equation has been used to study the interaction of a neutrino flux with a plasma in a stellar medium. The resulting collective stimulated sca ttering of the neutrino by the plasma is described by a cubic dispersion re lation, which is solved numerically and analytically which gives a maximum growth rate structurally identical to growth rate obtained by Bingham et al . [Phys. Lett. A 193 (1994) 279] by using a Klein-Gordon like equation mode l, in which the neutrinos are considered as bosons, to describe the linear regime of the collective interaction. (C) 1999 Elsevier Science B.V. All ri ghts reserved.